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Finding the Fourth Proportional to 473,015.80, 709,523.70 and 260,439.40

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Solution

The fourth proportional to 473,015.80, 709,523.70 and 260,439.40 is: 390,659.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    473,015.80 : 709,523.70 = 260,439.40 : x
  2. Step 2: Convert to fraction form
    473,015.80/709,523.70 = 260,439.40/x
  3. Step 3: Cross multiply
    473,015.80x = 709,523.70 × 260,439.40
  4. Step 4: Simplify right side
    473,015.80x = 184,787,926,713.78
  5. Step 5: Solve for x
    x = 184,787,926,713.78/473,015.80
  6. Step 6: Final answer
    x = 390,659.10

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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.