Home / 847,276.50-1,169,261.88-465,311.46

Finding the Fourth Proportional to 847,276.50, 1,169,261.88 and 465,311.46

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Solution

The fourth proportional to 847,276.50, 1,169,261.88 and 465,311.46 is: 642,140.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    847,276.50 : 1,169,261.88 = 465,311.46 : x
  2. Step 2: Convert to fraction form
    847,276.50/1,169,261.88 = 465,311.46/x
  3. Step 3: Cross multiply
    847,276.50x = 1,169,261.88 × 465,311.46
  4. Step 4: Simplify right side
    847,276.50x = 544,070,952,505.15
  5. Step 5: Solve for x
    x = 544,070,952,505.15/847,276.50
  6. Step 6: Final answer
    x = 642,140.97

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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.