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Finding the Fourth Proportional to 276,005.60, 414,008.40 and 191,587.40

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Solution

The fourth proportional to 276,005.60, 414,008.40 and 191,587.40 is: 287,381.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,005.60 : 414,008.40 = 191,587.40 : x
  2. Step 2: Convert to fraction form
    276,005.60/414,008.40 = 191,587.40/x
  3. Step 3: Cross multiply
    276,005.60x = 414,008.40 × 191,587.40
  4. Step 4: Simplify right side
    276,005.60x = 79,318,792,934.16
  5. Step 5: Solve for x
    x = 79,318,792,934.16/276,005.60
  6. Step 6: Final answer
    x = 287,381.10

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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.