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Finding the Fourth Proportional to 623,807.60, 935,711.40 and 576,568.40

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Solution

The fourth proportional to 623,807.60, 935,711.40 and 576,568.40 is: 864,852.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    623,807.60 : 935,711.40 = 576,568.40 : x
  2. Step 2: Convert to fraction form
    623,807.60/935,711.40 = 576,568.40/x
  3. Step 3: Cross multiply
    623,807.60x = 935,711.40 × 576,568.40
  4. Step 4: Simplify right side
    623,807.60x = 539,501,624,759.76
  5. Step 5: Solve for x
    x = 539,501,624,759.76/623,807.60
  6. Step 6: Final answer
    x = 864,852.60

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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.