Home / 691,020.59-953,566.46-380,909.60

Finding the Fourth Proportional to 691,020.59, 953,566.46 and 380,909.60

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Solution

The fourth proportional to 691,020.59, 953,566.46 and 380,909.60 is: 525,632.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    691,020.59 : 953,566.46 = 380,909.60 : x
  2. Step 2: Convert to fraction form
    691,020.59/953,566.46 = 380,909.60/x
  3. Step 3: Cross multiply
    691,020.59x = 953,566.46 × 380,909.60
  4. Step 4: Simplify right side
    691,020.59x = 363,222,614,084.18
  5. Step 5: Solve for x
    x = 363,222,614,084.18/691,020.59
  6. Step 6: Final answer
    x = 525,632.11

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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.