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Finding the Fourth Proportional to 665,624.34, 918,562.05 and 363,818.34

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Solution

The fourth proportional to 665,624.34, 918,562.05 and 363,818.34 is: 502,069.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    665,624.34 : 918,562.05 = 363,818.34 : x
  2. Step 2: Convert to fraction form
    665,624.34/918,562.05 = 363,818.34/x
  3. Step 3: Cross multiply
    665,624.34x = 918,562.05 × 363,818.34
  4. Step 4: Simplify right side
    665,624.34x = 334,189,720,218.00
  5. Step 5: Solve for x
    x = 334,189,720,218.00/665,624.34
  6. Step 6: Final answer
    x = 502,069.56

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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.