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Finding the Fourth Proportional to 677,452.50, 935,030.25 and 405,581.04

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Solution

The fourth proportional to 677,452.50, 935,030.25 and 405,581.04 is: 559,789.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    677,452.50 : 935,030.25 = 405,581.04 : x
  2. Step 2: Convert to fraction form
    677,452.50/935,030.25 = 405,581.04/x
  3. Step 3: Cross multiply
    677,452.50x = 935,030.25 × 405,581.04
  4. Step 4: Simplify right side
    677,452.50x = 379,230,541,226.46
  5. Step 5: Solve for x
    x = 379,230,541,226.46/677,452.50
  6. Step 6: Final answer
    x = 559,789.12

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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.