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Finding the Fourth Proportional to 586,251.19, 808,384.17 and 381,923.20

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Solution

The fourth proportional to 586,251.19, 808,384.17 and 381,923.20 is: 526,635.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    586,251.19 : 808,384.17 = 381,923.20 : x
  2. Step 2: Convert to fraction form
    586,251.19/808,384.17 = 381,923.20/x
  3. Step 3: Cross multiply
    586,251.19x = 808,384.17 × 381,923.20
  4. Step 4: Simplify right side
    586,251.19x = 308,740,669,035.74
  5. Step 5: Solve for x
    x = 308,740,669,035.74/586,251.19
  6. Step 6: Final answer
    x = 526,635.47

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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.