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Finding the Fourth Proportional to 647,030.10, 970,545.15 and 633,206.10

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Solution

The fourth proportional to 647,030.10, 970,545.15 and 633,206.10 is: 949,809.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,030.10 : 970,545.15 = 633,206.10 : x
  2. Step 2: Convert to fraction form
    647,030.10/970,545.15 = 633,206.10/x
  3. Step 3: Cross multiply
    647,030.10x = 970,545.15 × 633,206.10
  4. Step 4: Simplify right side
    647,030.10x = 614,555,109,305.42
  5. Step 5: Solve for x
    x = 614,555,109,305.42/647,030.10
  6. Step 6: Final answer
    x = 949,809.15

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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.