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Finding the Fourth Proportional to 560,210.40, 839,614.80 and 279,805.92

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Solution

The fourth proportional to 560,210.40, 839,614.80 and 279,805.92 is: 419,358.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    560,210.40 : 839,614.80 = 279,805.92 : x
  2. Step 2: Convert to fraction form
    560,210.40/839,614.80 = 279,805.92/x
  3. Step 3: Cross multiply
    560,210.40x = 839,614.80 × 279,805.92
  4. Step 4: Simplify right side
    560,210.40x = 234,929,191,559.62
  5. Step 5: Solve for x
    x = 234,929,191,559.62/560,210.40
  6. Step 6: Final answer
    x = 419,358.85

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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.