Home / 521,621.38-719,855.19-292,188.46

Finding the Fourth Proportional to 521,621.38, 719,855.19 and 292,188.46

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Solution

The fourth proportional to 521,621.38, 719,855.19 and 292,188.46 is: 403,229.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,621.38 : 719,855.19 = 292,188.46 : x
  2. Step 2: Convert to fraction form
    521,621.38/719,855.19 = 292,188.46/x
  3. Step 3: Cross multiply
    521,621.38x = 719,855.19 × 292,188.46
  4. Step 4: Simplify right side
    521,621.38x = 210,333,379,389.11
  5. Step 5: Solve for x
    x = 210,333,379,389.11/521,621.38
  6. Step 6: Final answer
    x = 403,229.98

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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.