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Finding the Fourth Proportional to 545,558.43, 752,870.12 and 316,248.52

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Solution

The fourth proportional to 545,558.43, 752,870.12 and 316,248.52 is: 436,422.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,558.43 : 752,870.12 = 316,248.52 : x
  2. Step 2: Convert to fraction form
    545,558.43/752,870.12 = 316,248.52/x
  3. Step 3: Cross multiply
    545,558.43x = 752,870.12 × 316,248.52
  4. Step 4: Simplify right side
    545,558.43x = 238,094,056,863.71
  5. Step 5: Solve for x
    x = 238,094,056,863.71/545,558.43
  6. Step 6: Final answer
    x = 436,422.65

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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.