Home / 663,597.20-915,724.68-377,077.52

Finding the Fourth Proportional to 663,597.20, 915,724.68 and 377,077.52

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Solution

The fourth proportional to 663,597.20, 915,724.68 and 377,077.52 is: 520,344.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    663,597.20 : 915,724.68 = 377,077.52 : x
  2. Step 2: Convert to fraction form
    663,597.20/915,724.68 = 377,077.52/x
  3. Step 3: Cross multiply
    663,597.20x = 915,724.68 × 377,077.52
  4. Step 4: Simplify right side
    663,597.20x = 345,299,191,337.19
  5. Step 5: Solve for x
    x = 345,299,191,337.19/663,597.20
  6. Step 6: Final answer
    x = 520,344.56

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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.