Home / 2,077,017.60-3,115,526.40-1,275,700.80

Finding the Fourth Proportional to 2,077,017.60, 3,115,526.40 and 1,275,700.80

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Solution

The fourth proportional to 2,077,017.60, 3,115,526.40 and 1,275,700.80 is: 1,913,551.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,077,017.60 : 3,115,526.40 = 1,275,700.80 : x
  2. Step 2: Convert to fraction form
    2,077,017.60/3,115,526.40 = 1,275,700.80/x
  3. Step 3: Cross multiply
    2,077,017.60x = 3,115,526.40 × 1,275,700.80
  4. Step 4: Simplify right side
    2,077,017.60x = 3,974,479,520,901.12
  5. Step 5: Solve for x
    x = 3,974,479,520,901.12/2,077,017.60
  6. Step 6: Final answer
    x = 1,913,551.20

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Similar ratio
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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.