Home / 908,433.32-1,253,666.38-521,319.56

Finding the Fourth Proportional to 908,433.32, 1,253,666.38 and 521,319.56

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Solution

The fourth proportional to 908,433.32, 1,253,666.38 and 521,319.56 is: 719,437.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    908,433.32 : 1,253,666.38 = 521,319.56 : x
  2. Step 2: Convert to fraction form
    908,433.32/1,253,666.38 = 521,319.56/x
  3. Step 3: Cross multiply
    908,433.32x = 1,253,666.38 × 521,319.56
  4. Step 4: Simplify right side
    908,433.32x = 653,560,805,608.39
  5. Step 5: Solve for x
    x = 653,560,805,608.39/908,433.32
  6. Step 6: Final answer
    x = 719,437.29

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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.