Home / 991,902.90-1,368,839.61-539,203.62

Finding the Fourth Proportional to 991,902.90, 1,368,839.61 and 539,203.62

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Solution

The fourth proportional to 991,902.90, 1,368,839.61 and 539,203.62 is: 744,108.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    991,902.90 : 1,368,839.61 = 539,203.62 : x
  2. Step 2: Convert to fraction form
    991,902.90/1,368,839.61 = 539,203.62/x
  3. Step 3: Cross multiply
    991,902.90x = 1,368,839.61 × 539,203.62
  4. Step 4: Simplify right side
    991,902.90x = 738,083,272,911.39
  5. Step 5: Solve for x
    x = 738,083,272,911.39/991,902.90
  6. Step 6: Final answer
    x = 744,108.39

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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.