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Finding the Fourth Proportional to 684,220, 944,193.90 and 374,116.90

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Solution

The fourth proportional to 684,220, 944,193.90 and 374,116.90 is: 516,265.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    684,220 : 944,193.90 = 374,116.90 : x
  2. Step 2: Convert to fraction form
    684,220/944,193.90 = 374,116.90/x
  3. Step 3: Cross multiply
    684,220x = 944,193.90 × 374,116.90
  4. Step 4: Simplify right side
    684,220x = 353,238,894,866.91
  5. Step 5: Solve for x
    x = 353,238,894,866.91/684,220
  6. Step 6: Final answer
    x = 516,265.08

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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.