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Finding the Fourth Proportional to 334,695.80, 502,043.70 and 260,046.20

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Solution

The fourth proportional to 334,695.80, 502,043.70 and 260,046.20 is: 390,069.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    334,695.80 : 502,043.70 = 260,046.20 : x
  2. Step 2: Convert to fraction form
    334,695.80/502,043.70 = 260,046.20/x
  3. Step 3: Cross multiply
    334,695.80x = 502,043.70 × 260,046.20
  4. Step 4: Simplify right side
    334,695.80x = 130,554,556,418.94
  5. Step 5: Solve for x
    x = 130,554,556,418.94/334,695.80
  6. Step 6: Final answer
    x = 390,069.30

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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.