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Finding the Fourth Proportional to 531,965.40, 797,948.10 and 177,015.30

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Solution

The fourth proportional to 531,965.40, 797,948.10 and 177,015.30 is: 265,522.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    531,965.40 : 797,948.10 = 177,015.30 : x
  2. Step 2: Convert to fraction form
    531,965.40/797,948.10 = 177,015.30/x
  3. Step 3: Cross multiply
    531,965.40x = 797,948.10 × 177,015.30
  4. Step 4: Simplify right side
    531,965.40x = 141,249,022,305.93
  5. Step 5: Solve for x
    x = 141,249,022,305.93/531,965.40
  6. Step 6: Final answer
    x = 265,522.95

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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.