Home / 769,211.61-1,061,511.97-429,679.86

Finding the Fourth Proportional to 769,211.61, 1,061,511.97 and 429,679.86

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Solution

The fourth proportional to 769,211.61, 1,061,511.97 and 429,679.86 is: 592,958.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    769,211.61 : 1,061,511.97 = 429,679.86 : x
  2. Step 2: Convert to fraction form
    769,211.61/1,061,511.97 = 429,679.86/x
  3. Step 3: Cross multiply
    769,211.61x = 1,061,511.97 × 429,679.86
  4. Step 4: Simplify right side
    769,211.61x = 456,110,314,657.92
  5. Step 5: Solve for x
    x = 456,110,314,657.92/769,211.61
  6. Step 6: Final answer
    x = 592,958.18

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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.