Home / 1,123,680.60-1,550,505.24-640,266.12

Finding the Fourth Proportional to 1,123,680.60, 1,550,505.24 and 640,266.12

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Solution

The fourth proportional to 1,123,680.60, 1,550,505.24 and 640,266.12 is: 883,468.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,123,680.60 : 1,550,505.24 = 640,266.12 : x
  2. Step 2: Convert to fraction form
    1,123,680.60/1,550,505.24 = 640,266.12/x
  3. Step 3: Cross multiply
    1,123,680.60x = 1,550,505.24 × 640,266.12
  4. Step 4: Simplify right side
    1,123,680.60x = 992,735,974,054.47
  5. Step 5: Solve for x
    x = 992,735,974,054.47/1,123,680.60
  6. Step 6: Final answer
    x = 883,468.11

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1.5x scale

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.