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Finding the Fourth Proportional to 653,364, 898,842.96 and 625,370.40

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Solution

The fourth proportional to 653,364, 898,842.96 and 625,370.40 is: 860,331.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    653,364 : 898,842.96 = 625,370.40 : x
  2. Step 2: Convert to fraction form
    653,364/898,842.96 = 625,370.40/x
  3. Step 3: Cross multiply
    653,364x = 898,842.96 × 625,370.40
  4. Step 4: Simplify right side
    653,364x = 562,109,781,432.38
  5. Step 5: Solve for x
    x = 562,109,781,432.38/653,364
  6. Step 6: Final answer
    x = 860,331.73

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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.