Home / 1,920,074.40-2,880,111.60-657,712.80

Finding the Fourth Proportional to 1,920,074.40, 2,880,111.60 and 657,712.80

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Solution

The fourth proportional to 1,920,074.40, 2,880,111.60 and 657,712.80 is: 986,569.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,920,074.40 : 2,880,111.60 = 657,712.80 : x
  2. Step 2: Convert to fraction form
    1,920,074.40/2,880,111.60 = 657,712.80/x
  3. Step 3: Cross multiply
    1,920,074.40x = 2,880,111.60 × 657,712.80
  4. Step 4: Simplify right side
    1,920,074.40x = 1,894,286,264,748.48
  5. Step 5: Solve for x
    x = 1,894,286,264,748.48/1,920,074.40
  6. Step 6: Final answer
    x = 986,569.20

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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.