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Finding the Fourth Proportional to 524,164.17, 721,561.50 and 387,941.42

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Solution

The fourth proportional to 524,164.17, 721,561.50 and 387,941.42 is: 534,038.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    524,164.17 : 721,561.50 = 387,941.42 : x
  2. Step 2: Convert to fraction form
    524,164.17/721,561.50 = 387,941.42/x
  3. Step 3: Cross multiply
    524,164.17x = 721,561.50 × 387,941.42
  4. Step 4: Simplify right side
    524,164.17x = 279,923,589,319.52
  5. Step 5: Solve for x
    x = 279,923,589,319.52/524,164.17
  6. Step 6: Final answer
    x = 534,038.01

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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.