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Finding the Fourth Proportional to 966,501.80, 1,449,752.70 and 256,601.60

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Solution

The fourth proportional to 966,501.80, 1,449,752.70 and 256,601.60 is: 384,902.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    966,501.80 : 1,449,752.70 = 256,601.60 : x
  2. Step 2: Convert to fraction form
    966,501.80/1,449,752.70 = 256,601.60/x
  3. Step 3: Cross multiply
    966,501.80x = 1,449,752.70 × 256,601.60
  4. Step 4: Simplify right side
    966,501.80x = 372,008,862,424.32
  5. Step 5: Solve for x
    x = 372,008,862,424.32/966,501.80
  6. Step 6: Final answer
    x = 384,902.40

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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.