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Finding the Fourth Proportional to 688,306.24, 950,014.53 and 382,487.77

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Solution

The fourth proportional to 688,306.24, 950,014.53 and 382,487.77 is: 527,917.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,306.24 : 950,014.53 = 382,487.77 : x
  2. Step 2: Convert to fraction form
    688,306.24/950,014.53 = 382,487.77/x
  3. Step 3: Cross multiply
    688,306.24x = 950,014.53 × 382,487.77
  4. Step 4: Simplify right side
    688,306.24x = 363,368,944,719.89
  5. Step 5: Solve for x
    x = 363,368,944,719.89/688,306.24
  6. Step 6: Final answer
    x = 527,917.55

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Double scale
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Similar ratio
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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.