Home / 769,111.47-1,061,367.80-447,010.11

Finding the Fourth Proportional to 769,111.47, 1,061,367.80 and 447,010.11

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Solution

The fourth proportional to 769,111.47, 1,061,367.80 and 447,010.11 is: 616,870.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    769,111.47 : 1,061,367.80 = 447,010.11 : x
  2. Step 2: Convert to fraction form
    769,111.47/1,061,367.80 = 447,010.11/x
  3. Step 3: Cross multiply
    769,111.47x = 1,061,367.80 × 447,010.11
  4. Step 4: Simplify right side
    769,111.47x = 474,442,134,793.41
  5. Step 5: Solve for x
    x = 474,442,134,793.41/769,111.47
  6. Step 6: Final answer
    x = 616,870.45

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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.