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Finding the Fourth Proportional to 363,574.71, 501,753.80 and 218,424.89

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Solution

The fourth proportional to 363,574.71, 501,753.80 and 218,424.89 is: 301,438.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,574.71 : 501,753.80 = 218,424.89 : x
  2. Step 2: Convert to fraction form
    363,574.71/501,753.80 = 218,424.89/x
  3. Step 3: Cross multiply
    363,574.71x = 501,753.80 × 218,424.89
  4. Step 4: Simplify right side
    363,574.71x = 109,595,514,971.19
  5. Step 5: Solve for x
    x = 109,595,514,971.19/363,574.71
  6. Step 6: Final answer
    x = 301,438.77

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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.