Home / 529,126.73-730,208.47-287,423.13

Finding the Fourth Proportional to 529,126.73, 730,208.47 and 287,423.13

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Solution

The fourth proportional to 529,126.73, 730,208.47 and 287,423.13 is: 396,651.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,126.73 : 730,208.47 = 287,423.13 : x
  2. Step 2: Convert to fraction form
    529,126.73/730,208.47 = 287,423.13/x
  3. Step 3: Cross multiply
    529,126.73x = 730,208.47 × 287,423.13
  4. Step 4: Simplify right side
    529,126.73x = 209,878,806,558.55
  5. Step 5: Solve for x
    x = 209,878,806,558.55/529,126.73
  6. Step 6: Final answer
    x = 396,651.30

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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.