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Finding the Fourth Proportional to 614,793.60, 922,190.40 and 434,390.40

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Solution

The fourth proportional to 614,793.60, 922,190.40 and 434,390.40 is: 651,585.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    614,793.60 : 922,190.40 = 434,390.40 : x
  2. Step 2: Convert to fraction form
    614,793.60/922,190.40 = 434,390.40/x
  3. Step 3: Cross multiply
    614,793.60x = 922,190.40 × 434,390.40
  4. Step 4: Simplify right side
    614,793.60x = 400,590,656,732.16
  5. Step 5: Solve for x
    x = 400,590,656,732.16/614,793.60
  6. Step 6: Final answer
    x = 651,585.60

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.