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Finding the Fourth Proportional to 630,558.45, 871,118.43 and 413,282.73

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Solution

The fourth proportional to 630,558.45, 871,118.43 and 413,282.73 is: 570,951.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,558.45 : 871,118.43 = 413,282.73 : x
  2. Step 2: Convert to fraction form
    630,558.45/871,118.43 = 413,282.73/x
  3. Step 3: Cross multiply
    630,558.45x = 871,118.43 × 413,282.73
  4. Step 4: Simplify right side
    630,558.45x = 360,018,202,903.71
  5. Step 5: Solve for x
    x = 360,018,202,903.71/630,558.45
  6. Step 6: Final answer
    x = 570,951.36

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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.