Home / 1,275,606.80-1,913,640.60-527,728.40

Finding the Fourth Proportional to 1,275,606.80, 1,913,640.60 and 527,728.40

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Solution

The fourth proportional to 1,275,606.80, 1,913,640.60 and 527,728.40 is: 791,687.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,275,606.80 : 1,913,640.60 = 527,728.40 : x
  2. Step 2: Convert to fraction form
    1,275,606.80/1,913,640.60 = 527,728.40/x
  3. Step 3: Cross multiply
    1,275,606.80x = 1,913,640.60 × 527,728.40
  4. Step 4: Simplify right side
    1,275,606.80x = 1,009,882,492,013.04
  5. Step 5: Solve for x
    x = 1,009,882,492,013.04/1,275,606.80
  6. Step 6: Final answer
    x = 791,687.92

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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.