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Finding the Fourth Proportional to 314,711.20, 473,233.20 and 263,389.60

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Solution

The fourth proportional to 314,711.20, 473,233.20 and 263,389.60 is: 396,060.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    314,711.20 : 473,233.20 = 263,389.60 : x
  2. Step 2: Convert to fraction form
    314,711.20/473,233.20 = 263,389.60/x
  3. Step 3: Cross multiply
    314,711.20x = 473,233.20 × 263,389.60
  4. Step 4: Simplify right side
    314,711.20x = 124,644,703,254.72
  5. Step 5: Solve for x
    x = 124,644,703,254.72/314,711.20
  6. Step 6: Final answer
    x = 396,060.59

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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.