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Finding the Fourth Proportional to 482,989.60, 724,484.40 and 294,032.80

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Solution

The fourth proportional to 482,989.60, 724,484.40 and 294,032.80 is: 441,049.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,989.60 : 724,484.40 = 294,032.80 : x
  2. Step 2: Convert to fraction form
    482,989.60/724,484.40 = 294,032.80/x
  3. Step 3: Cross multiply
    482,989.60x = 724,484.40 × 294,032.80
  4. Step 4: Simplify right side
    482,989.60x = 213,022,176,688.32
  5. Step 5: Solve for x
    x = 213,022,176,688.32/482,989.60
  6. Step 6: Final answer
    x = 441,049.20

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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.