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Finding the Fourth Proportional to 458,581.95, 688,018.22 and 357,725.79

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Solution

The fourth proportional to 458,581.95, 688,018.22 and 357,725.79 is: 536,702.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    458,581.95 : 688,018.22 = 357,725.79 : x
  2. Step 2: Convert to fraction form
    458,581.95/688,018.22 = 357,725.79/x
  3. Step 3: Cross multiply
    458,581.95x = 688,018.22 × 357,725.79
  4. Step 4: Simplify right side
    458,581.95x = 246,121,859,495.27
  5. Step 5: Solve for x
    x = 246,121,859,495.27/458,581.95
  6. Step 6: Final answer
    x = 536,702.02

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.