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Finding the Fourth Proportional to 684,757.81, 944,965.06 and 382,951.81

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Solution

The fourth proportional to 684,757.81, 944,965.06 and 382,951.81 is: 528,473.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    684,757.81 : 944,965.06 = 382,951.81 : x
  2. Step 2: Convert to fraction form
    684,757.81/944,965.06 = 382,951.81/x
  3. Step 3: Cross multiply
    684,757.81x = 944,965.06 × 382,951.81
  4. Step 4: Simplify right side
    684,757.81x = 361,876,080,113.76
  5. Step 5: Solve for x
    x = 361,876,080,113.76/684,757.81
  6. Step 6: Final answer
    x = 528,473.10

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Double scale
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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.