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Finding the Fourth Proportional to 334,696.80, 502,045.20 and 260,047.20

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Solution

The fourth proportional to 334,696.80, 502,045.20 and 260,047.20 is: 390,070.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    334,696.80 : 502,045.20 = 260,047.20 : x
  2. Step 2: Convert to fraction form
    334,696.80/502,045.20 = 260,047.20/x
  3. Step 3: Cross multiply
    334,696.80x = 502,045.20 × 260,047.20
  4. Step 4: Simplify right side
    334,696.80x = 130,555,448,533.44
  5. Step 5: Solve for x
    x = 130,555,448,533.44/334,696.80
  6. Step 6: Final answer
    x = 390,070.80

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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.