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Finding the Fourth Proportional to 651,577.48, 898,251.78 and 479,190.76

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Solution

The fourth proportional to 651,577.48, 898,251.78 and 479,190.76 is: 660,602.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    651,577.48 : 898,251.78 = 479,190.76 : x
  2. Step 2: Convert to fraction form
    651,577.48/898,251.78 = 479,190.76/x
  3. Step 3: Cross multiply
    651,577.48x = 898,251.78 × 479,190.76
  4. Step 4: Simplify right side
    651,577.48x = 430,433,953,129.55
  5. Step 5: Solve for x
    x = 430,433,953,129.55/651,577.48
  6. Step 6: Final answer
    x = 660,602.87

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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.