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Finding the Fourth Proportional to 630,568.48, 871,132.28 and 413,292.72

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Solution

The fourth proportional to 630,568.48, 871,132.28 and 413,292.72 is: 570,965.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,568.48 : 871,132.28 = 413,292.72 : x
  2. Step 2: Convert to fraction form
    630,568.48/871,132.28 = 413,292.72/x
  3. Step 3: Cross multiply
    630,568.48x = 871,132.28 × 413,292.72
  4. Step 4: Simplify right side
    630,568.48x = 360,032,629,481.00
  5. Step 5: Solve for x
    x = 360,032,629,481.00/630,568.48
  6. Step 6: Final answer
    x = 570,965.15

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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.