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Finding the Fourth Proportional to 665,398.56, 918,252.40 and 363,592.56

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Solution

The fourth proportional to 665,398.56, 918,252.40 and 363,592.56 is: 501,759.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    665,398.56 : 918,252.40 = 363,592.56 : x
  2. Step 2: Convert to fraction form
    665,398.56/918,252.40 = 363,592.56/x
  3. Step 3: Cross multiply
    665,398.56x = 918,252.40 × 363,592.56
  4. Step 4: Simplify right side
    665,398.56x = 333,869,740,842.14
  5. Step 5: Solve for x
    x = 333,869,740,842.14/665,398.56
  6. Step 6: Final answer
    x = 501,759.04

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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.