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Finding the Fourth Proportional to 656,666.06, 906,340.05 and 414,794.78

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Solution

The fourth proportional to 656,666.06, 906,340.05 and 414,794.78 is: 572,505.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    656,666.06 : 906,340.05 = 414,794.78 : x
  2. Step 2: Convert to fraction form
    656,666.06/906,340.05 = 414,794.78/x
  3. Step 3: Cross multiply
    656,666.06x = 906,340.05 × 414,794.78
  4. Step 4: Simplify right side
    656,666.06x = 375,945,121,644.94
  5. Step 5: Solve for x
    x = 375,945,121,644.94/656,666.06
  6. Step 6: Final answer
    x = 572,505.79

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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.