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Finding the Fourth Proportional to 514,830.80, 772,246.20 and 159,953.60

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Solution

The fourth proportional to 514,830.80, 772,246.20 and 159,953.60 is: 239,930.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    514,830.80 : 772,246.20 = 159,953.60 : x
  2. Step 2: Convert to fraction form
    514,830.80/772,246.20 = 159,953.60/x
  3. Step 3: Cross multiply
    514,830.80x = 772,246.20 × 159,953.60
  4. Step 4: Simplify right side
    514,830.80x = 123,523,559,776.32
  5. Step 5: Solve for x
    x = 123,523,559,776.32/514,830.80
  6. Step 6: Final answer
    x = 239,930.40

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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.