Home / 1,969,029.20-2,953,543.80-1,126,888.40

Finding the Fourth Proportional to 1,969,029.20, 2,953,543.80 and 1,126,888.40

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Solution

The fourth proportional to 1,969,029.20, 2,953,543.80 and 1,126,888.40 is: 1,690,332.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,969,029.20 : 2,953,543.80 = 1,126,888.40 : x
  2. Step 2: Convert to fraction form
    1,969,029.20/2,953,543.80 = 1,126,888.40/x
  3. Step 3: Cross multiply
    1,969,029.20x = 2,953,543.80 × 1,126,888.40
  4. Step 4: Simplify right side
    1,969,029.20x = 3,328,314,247,111.92
  5. Step 5: Solve for x
    x = 3,328,314,247,111.92/1,969,029.20
  6. Step 6: Final answer
    x = 1,690,332.60

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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.