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Finding the Fourth Proportional to 529,008.75, 730,255.46 and 357,159.38

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Solution

The fourth proportional to 529,008.75, 730,255.46 and 357,159.38 is: 493,030.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,008.75 : 730,255.46 = 357,159.38 : x
  2. Step 2: Convert to fraction form
    529,008.75/730,255.46 = 357,159.38/x
  3. Step 3: Cross multiply
    529,008.75x = 730,255.46 × 357,159.38
  4. Step 4: Simplify right side
    529,008.75x = 260,817,581,898.14
  5. Step 5: Solve for x
    x = 260,817,581,898.14/529,008.75
  6. Step 6: Final answer
    x = 493,030.75

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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.