Home / 623,712.30-935,568.45-386,285.10

Finding the Fourth Proportional to 623,712.30, 935,568.45 and 386,285.10

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Solution

The fourth proportional to 623,712.30, 935,568.45 and 386,285.10 is: 579,427.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    623,712.30 : 935,568.45 = 386,285.10 : x
  2. Step 2: Convert to fraction form
    623,712.30/935,568.45 = 386,285.10/x
  3. Step 3: Cross multiply
    623,712.30x = 935,568.45 × 386,285.10
  4. Step 4: Simplify right side
    623,712.30x = 361,396,152,265.10
  5. Step 5: Solve for x
    x = 361,396,152,265.10/623,712.30
  6. Step 6: Final answer
    x = 579,427.65

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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.