Home / 838,307.13-1,156,863.97-456,336.78

Finding the Fourth Proportional to 838,307.13, 1,156,863.97 and 456,336.78

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Solution

The fourth proportional to 838,307.13, 1,156,863.97 and 456,336.78 is: 629,744.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    838,307.13 : 1,156,863.97 = 456,336.78 : x
  2. Step 2: Convert to fraction form
    838,307.13/1,156,863.97 = 456,336.78/x
  3. Step 3: Cross multiply
    838,307.13x = 1,156,863.97 × 456,336.78
  4. Step 4: Simplify right side
    838,307.13x = 527,919,578,967.82
  5. Step 5: Solve for x
    x = 527,919,578,967.82/838,307.13
  6. Step 6: Final answer
    x = 629,744.83

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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.