Home / 1,640,280.52-2,263,652.72-915,191.60

Finding the Fourth Proportional to 1,640,280.52, 2,263,652.72 and 915,191.60

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Solution

The fourth proportional to 1,640,280.52, 2,263,652.72 and 915,191.60 is: 1,263,001.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,640,280.52 : 2,263,652.72 = 915,191.60 : x
  2. Step 2: Convert to fraction form
    1,640,280.52/2,263,652.72 = 915,191.60/x
  3. Step 3: Cross multiply
    1,640,280.52x = 2,263,652.72 × 915,191.60
  4. Step 4: Simplify right side
    1,640,280.52x = 2,071,675,960,079.90
  5. Step 5: Solve for x
    x = 2,071,675,960,079.90/1,640,280.52
  6. Step 6: Final answer
    x = 1,263,001.02

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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.