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Finding the Fourth Proportional to 650,307.60, 975,461.40 and 545,331.60

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Solution

The fourth proportional to 650,307.60, 975,461.40 and 545,331.60 is: 817,997.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    650,307.60 : 975,461.40 = 545,331.60 : x
  2. Step 2: Convert to fraction form
    650,307.60/975,461.40 = 545,331.60/x
  3. Step 3: Cross multiply
    650,307.60x = 975,461.40 × 545,331.60
  4. Step 4: Simplify right side
    650,307.60x = 531,949,926,000.24
  5. Step 5: Solve for x
    x = 531,949,926,000.24/650,307.60
  6. Step 6: Final answer
    x = 817,997.40

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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.