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Finding the Fourth Proportional to 720,353.93, 994,165.45 and 414,443.66

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Solution

The fourth proportional to 720,353.93, 994,165.45 and 414,443.66 is: 571,976.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    720,353.93 : 994,165.45 = 414,443.66 : x
  2. Step 2: Convert to fraction form
    720,353.93/994,165.45 = 414,443.66/x
  3. Step 3: Cross multiply
    720,353.93x = 994,165.45 × 414,443.66
  4. Step 4: Simplify right side
    720,353.93x = 412,025,561,736.61
  5. Step 5: Solve for x
    x = 412,025,561,736.61/720,353.93
  6. Step 6: Final answer
    x = 571,976.56

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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.