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Finding the Fourth Proportional to 668,566.40, 922,149.24 and 413,999.60

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Solution

The fourth proportional to 668,566.40, 922,149.24 and 413,999.60 is: 571,026.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,566.40 : 922,149.24 = 413,999.60 : x
  2. Step 2: Convert to fraction form
    668,566.40/922,149.24 = 413,999.60/x
  3. Step 3: Cross multiply
    668,566.40x = 922,149.24 × 413,999.60
  4. Step 4: Simplify right side
    668,566.40x = 381,769,416,500.30
  5. Step 5: Solve for x
    x = 381,769,416,500.30/668,566.40
  6. Step 6: Final answer
    x = 571,026.93

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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.