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Finding the Fourth Proportional to 619,470.99, 927,705.96 and 315,064.28

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Solution

The fourth proportional to 619,470.99, 927,705.96 and 315,064.28 is: 471,833.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,470.99 : 927,705.96 = 315,064.28 : x
  2. Step 2: Convert to fraction form
    619,470.99/927,705.96 = 315,064.28/x
  3. Step 3: Cross multiply
    619,470.99x = 927,705.96 × 315,064.28
  4. Step 4: Simplify right side
    619,470.99x = 292,287,012,658.37
  5. Step 5: Solve for x
    x = 292,287,012,658.37/619,470.99
  6. Step 6: Final answer
    x = 471,833.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.