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Finding the Fourth Proportional to 545,904.40, 818,856.60 and 488,167.60

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Solution

The fourth proportional to 545,904.40, 818,856.60 and 488,167.60 is: 732,251.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,904.40 : 818,856.60 = 488,167.60 : x
  2. Step 2: Convert to fraction form
    545,904.40/818,856.60 = 488,167.60/x
  3. Step 3: Cross multiply
    545,904.40x = 818,856.60 × 488,167.60
  4. Step 4: Simplify right side
    545,904.40x = 399,739,261,166.16
  5. Step 5: Solve for x
    x = 399,739,261,166.16/545,904.40
  6. Step 6: Final answer
    x = 732,251.40

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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.