Home / 557,140.32-767,132.13-435,125.57

Finding the Fourth Proportional to 557,140.32, 767,132.13 and 435,125.57

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Solution

The fourth proportional to 557,140.32, 767,132.13 and 435,125.57 is: 599,128.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,140.32 : 767,132.13 = 435,125.57 : x
  2. Step 2: Convert to fraction form
    557,140.32/767,132.13 = 435,125.57/x
  3. Step 3: Cross multiply
    557,140.32x = 767,132.13 × 435,125.57
  4. Step 4: Simplify right side
    557,140.32x = 333,798,801,495.90
  5. Step 5: Solve for x
    x = 333,798,801,495.90/557,140.32
  6. Step 6: Final answer
    x = 599,128.78

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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.