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Finding the Fourth Proportional to 482,928.60, 724,490.10 and 404,585.40

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Solution

The fourth proportional to 482,928.60, 724,490.10 and 404,585.40 is: 606,959.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,928.60 : 724,490.10 = 404,585.40 : x
  2. Step 2: Convert to fraction form
    482,928.60/724,490.10 = 404,585.40/x
  3. Step 3: Cross multiply
    482,928.60x = 724,490.10 × 404,585.40
  4. Step 4: Simplify right side
    482,928.60x = 293,118,116,904.54
  5. Step 5: Solve for x
    x = 293,118,116,904.54/482,928.60
  6. Step 6: Final answer
    x = 606,959.53

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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.