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Finding the Fourth Proportional to 482,859.60, 724,289.40 and 358,443.60

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Solution

The fourth proportional to 482,859.60, 724,289.40 and 358,443.60 is: 537,665.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,859.60 : 724,289.40 = 358,443.60 : x
  2. Step 2: Convert to fraction form
    482,859.60/724,289.40 = 358,443.60/x
  3. Step 3: Cross multiply
    482,859.60x = 724,289.40 × 358,443.60
  4. Step 4: Simplify right side
    482,859.60x = 259,616,899,977.84
  5. Step 5: Solve for x
    x = 259,616,899,977.84/482,859.60
  6. Step 6: Final answer
    x = 537,665.40

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Double scale
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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.