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Finding the Fourth Proportional to 502,034.40, 692,799.56 and 275,679.90

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Solution

The fourth proportional to 502,034.40, 692,799.56 and 275,679.90 is: 380,433.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    502,034.40 : 692,799.56 = 275,679.90 : x
  2. Step 2: Convert to fraction form
    502,034.40/692,799.56 = 275,679.90/x
  3. Step 3: Cross multiply
    502,034.40x = 692,799.56 × 275,679.90
  4. Step 4: Simplify right side
    502,034.40x = 190,990,913,420.84
  5. Step 5: Solve for x
    x = 190,990,913,420.84/502,034.40
  6. Step 6: Final answer
    x = 380,433.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.