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Finding the Fourth Proportional to 635,411.40, 953,117.10 and 475,979.10

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Solution

The fourth proportional to 635,411.40, 953,117.10 and 475,979.10 is: 713,968.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    635,411.40 : 953,117.10 = 475,979.10 : x
  2. Step 2: Convert to fraction form
    635,411.40/953,117.10 = 475,979.10/x
  3. Step 3: Cross multiply
    635,411.40x = 953,117.10 × 475,979.10
  4. Step 4: Simplify right side
    635,411.40x = 453,663,819,452.61
  5. Step 5: Solve for x
    x = 453,663,819,452.61/635,411.40
  6. Step 6: Final answer
    x = 713,968.65

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Half scale
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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.