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Finding the Fourth Proportional to 516,002.80, 774,004.20 and 348,041.20

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Solution

The fourth proportional to 516,002.80, 774,004.20 and 348,041.20 is: 522,061.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    516,002.80 : 774,004.20 = 348,041.20 : x
  2. Step 2: Convert to fraction form
    516,002.80/774,004.20 = 348,041.20/x
  3. Step 3: Cross multiply
    516,002.80x = 774,004.20 × 348,041.20
  4. Step 4: Simplify right side
    516,002.80x = 269,385,350,573.04
  5. Step 5: Solve for x
    x = 269,385,350,573.04/516,002.80
  6. Step 6: Final answer
    x = 522,061.80

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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.