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Finding the Fourth Proportional to 502,643.80, 753,965.70 and 222,707.80

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Solution

The fourth proportional to 502,643.80, 753,965.70 and 222,707.80 is: 334,061.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    502,643.80 : 753,965.70 = 222,707.80 : x
  2. Step 2: Convert to fraction form
    502,643.80/753,965.70 = 222,707.80/x
  3. Step 3: Cross multiply
    502,643.80x = 753,965.70 × 222,707.80
  4. Step 4: Simplify right side
    502,643.80x = 167,914,042,322.46
  5. Step 5: Solve for x
    x = 167,914,042,322.46/502,643.80
  6. Step 6: Final answer
    x = 334,061.70

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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.