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Finding the Fourth Proportional to 556,279.20, 834,418.80 and 335,095.20

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Solution

The fourth proportional to 556,279.20, 834,418.80 and 335,095.20 is: 502,642.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,279.20 : 834,418.80 = 335,095.20 : x
  2. Step 2: Convert to fraction form
    556,279.20/834,418.80 = 335,095.20/x
  3. Step 3: Cross multiply
    556,279.20x = 834,418.80 × 335,095.20
  4. Step 4: Simplify right side
    556,279.20x = 279,609,734,669.76
  5. Step 5: Solve for x
    x = 279,609,734,669.76/556,279.20
  6. Step 6: Final answer
    x = 502,642.80

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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.