Home / 1,187,999.80-1,781,654.10-655,775.80

Finding the Fourth Proportional to 1,187,999.80, 1,781,654.10 and 655,775.80

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Solution

The fourth proportional to 1,187,999.80, 1,781,654.10 and 655,775.80 is: 983,472.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,187,999.80 : 1,781,654.10 = 655,775.80 : x
  2. Step 2: Convert to fraction form
    1,187,999.80/1,781,654.10 = 655,775.80/x
  3. Step 3: Cross multiply
    1,187,999.80x = 1,781,654.10 × 655,775.80
  4. Step 4: Simplify right side
    1,187,999.80x = 1,168,365,642,750.78
  5. Step 5: Solve for x
    x = 1,168,365,642,750.78/1,187,999.80
  6. Step 6: Final answer
    x = 983,472.93

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1.5x scale

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.