Home / 2,191,176.80-3,287,254.80-771,279.20

Finding the Fourth Proportional to 2,191,176.80, 3,287,254.80 and 771,279.20

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Solution

The fourth proportional to 2,191,176.80, 3,287,254.80 and 771,279.20 is: 1,157,091.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,191,176.80 : 3,287,254.80 = 771,279.20 : x
  2. Step 2: Convert to fraction form
    2,191,176.80/3,287,254.80 = 771,279.20/x
  3. Step 3: Cross multiply
    2,191,176.80x = 3,287,254.80 × 771,279.20
  4. Step 4: Simplify right side
    2,191,176.80x = 2,535,391,252,340.16
  5. Step 5: Solve for x
    x = 2,535,391,252,340.16/2,191,176.80
  6. Step 6: Final answer
    x = 1,157,091.14

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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.