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Finding the Fourth Proportional to 623,937.60, 935,906.40 and 545,205.60

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Solution

The fourth proportional to 623,937.60, 935,906.40 and 545,205.60 is: 817,808.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    623,937.60 : 935,906.40 = 545,205.60 : x
  2. Step 2: Convert to fraction form
    623,937.60/935,906.40 = 545,205.60/x
  3. Step 3: Cross multiply
    623,937.60x = 935,906.40 × 545,205.60
  4. Step 4: Simplify right side
    623,937.60x = 510,261,410,355.84
  5. Step 5: Solve for x
    x = 510,261,410,355.84/623,937.60
  6. Step 6: Final answer
    x = 817,808.40

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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.