Home / 837,554.40-1,256,331.60-518,689.80

Finding the Fourth Proportional to 837,554.40, 1,256,331.60 and 518,689.80

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Solution

The fourth proportional to 837,554.40, 1,256,331.60 and 518,689.80 is: 778,034.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    837,554.40 : 1,256,331.60 = 518,689.80 : x
  2. Step 2: Convert to fraction form
    837,554.40/1,256,331.60 = 518,689.80/x
  3. Step 3: Cross multiply
    837,554.40x = 1,256,331.60 × 518,689.80
  4. Step 4: Simplify right side
    837,554.40x = 651,646,386,337.68
  5. Step 5: Solve for x
    x = 651,646,386,337.68/837,554.40
  6. Step 6: Final answer
    x = 778,034.70

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.