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Finding the Fourth Proportional to 623,818.72, 860,869.92 and 337,338.88

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Solution

The fourth proportional to 623,818.72, 860,869.92 and 337,338.88 is: 465,527.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    623,818.72 : 860,869.92 = 337,338.88 : x
  2. Step 2: Convert to fraction form
    623,818.72/860,869.92 = 337,338.88/x
  3. Step 3: Cross multiply
    623,818.72x = 860,869.92 × 337,338.88
  4. Step 4: Simplify right side
    623,818.72x = 290,404,894,638.49
  5. Step 5: Solve for x
    x = 290,404,894,638.49/623,818.72
  6. Step 6: Final answer
    x = 465,527.70

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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.