Home / 838,657.80-1,257,986.70-572,937.30

Finding the Fourth Proportional to 838,657.80, 1,257,986.70 and 572,937.30

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Solution

The fourth proportional to 838,657.80, 1,257,986.70 and 572,937.30 is: 859,405.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    838,657.80 : 1,257,986.70 = 572,937.30 : x
  2. Step 2: Convert to fraction form
    838,657.80/1,257,986.70 = 572,937.30/x
  3. Step 3: Cross multiply
    838,657.80x = 1,257,986.70 × 572,937.30
  4. Step 4: Simplify right side
    838,657.80x = 720,747,503,333.91
  5. Step 5: Solve for x
    x = 720,747,503,333.91/838,657.80
  6. Step 6: Final answer
    x = 859,405.95

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.