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Finding the Fourth Proportional to 549,047.59, 757,693.41 and 316,345.92

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Solution

The fourth proportional to 549,047.59, 757,693.41 and 316,345.92 is: 436,561.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    549,047.59 : 757,693.41 = 316,345.92 : x
  2. Step 2: Convert to fraction form
    549,047.59/757,693.41 = 316,345.92/x
  3. Step 3: Cross multiply
    549,047.59x = 757,693.41 × 316,345.92
  4. Step 4: Simplify right side
    549,047.59x = 239,693,218,864.39
  5. Step 5: Solve for x
    x = 239,693,218,864.39/549,047.59
  6. Step 6: Final answer
    x = 436,561.83

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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.