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Finding the Fourth Proportional to 473,020.80, 709,531.20 and 260,444.40

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Solution

The fourth proportional to 473,020.80, 709,531.20 and 260,444.40 is: 390,666.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    473,020.80 : 709,531.20 = 260,444.40 : x
  2. Step 2: Convert to fraction form
    473,020.80/709,531.20 = 260,444.40/x
  3. Step 3: Cross multiply
    473,020.80x = 709,531.20 × 260,444.40
  4. Step 4: Simplify right side
    473,020.80x = 184,793,427,665.28
  5. Step 5: Solve for x
    x = 184,793,427,665.28/473,020.80
  6. Step 6: Final answer
    x = 390,666.60

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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.