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Finding the Fourth Proportional to 532,612.40, 798,918.60 and 448,631.60

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Solution

The fourth proportional to 532,612.40, 798,918.60 and 448,631.60 is: 672,947.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    532,612.40 : 798,918.60 = 448,631.60 : x
  2. Step 2: Convert to fraction form
    532,612.40/798,918.60 = 448,631.60/x
  3. Step 3: Cross multiply
    532,612.40x = 798,918.60 × 448,631.60
  4. Step 4: Simplify right side
    532,612.40x = 358,420,129,787.76
  5. Step 5: Solve for x
    x = 358,420,129,787.76/532,612.40
  6. Step 6: Final answer
    x = 672,947.40

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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.