Home / 781,354,704.40-1,078,229,894.25-463,828,522.89

Finding the Fourth Proportional to 781,354,704.40, 1,078,229,894.25 and 463,828,522.89

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Solution

The fourth proportional to 781,354,704.40, 1,078,229,894.25 and 463,828,522.89 is: 640,059,855.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    781,354,704.40 : 1,078,229,894.25 = 463,828,522.89 : x
  2. Step 2: Convert to fraction form
    781,354,704.40/1,078,229,894.25 = 463,828,522.89/x
  3. Step 3: Cross multiply
    781,354,704.40x = 1,078,229,894.25 × 463,828,522.89
  4. Step 4: Simplify right side
    781,354,704.40x = 500,113,779,180,427,264
  5. Step 5: Solve for x
    x = 500,113,779,180,427,264/781,354,704.40
  6. Step 6: Final answer
    x = 640,059,855.48

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Double scale
Find fourth proportional to 781,354,705.40, 1,078,229,895.63 and 463,828,523.89
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.