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Finding the Fourth Proportional to 623,716.10, 935,574.15 and 576,476.90

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Solution

The fourth proportional to 623,716.10, 935,574.15 and 576,476.90 is: 864,715.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    623,716.10 : 935,574.15 = 576,476.90 : x
  2. Step 2: Convert to fraction form
    623,716.10/935,574.15 = 576,476.90/x
  3. Step 3: Cross multiply
    623,716.10x = 935,574.15 × 576,476.90
  4. Step 4: Simplify right side
    623,716.10x = 539,336,885,712.14
  5. Step 5: Solve for x
    x = 539,336,885,712.14/623,716.10
  6. Step 6: Final answer
    x = 864,715.35

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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.