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Finding the Fourth Proportional to 514,853.90, 772,426.65 and 159,903.80

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Solution

The fourth proportional to 514,853.90, 772,426.65 and 159,903.80 is: 239,900.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    514,853.90 : 772,426.65 = 159,903.80 : x
  2. Step 2: Convert to fraction form
    514,853.90/772,426.65 = 159,903.80/x
  3. Step 3: Cross multiply
    514,853.90x = 772,426.65 × 159,903.80
  4. Step 4: Simplify right side
    514,853.90x = 123,513,956,556.27
  5. Step 5: Solve for x
    x = 123,513,956,556.27/514,853.90
  6. Step 6: Final answer
    x = 239,900.98

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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.