Home / 1,124,078.56-1,551,190.03-640,799.39

Finding the Fourth Proportional to 1,124,078.56, 1,551,190.03 and 640,799.39

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Solution

The fourth proportional to 1,124,078.56, 1,551,190.03 and 640,799.39 is: 884,281.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,124,078.56 : 1,551,190.03 = 640,799.39 : x
  2. Step 2: Convert to fraction form
    1,124,078.56/1,551,190.03 = 640,799.39/x
  3. Step 3: Cross multiply
    1,124,078.56x = 1,551,190.03 × 640,799.39
  4. Step 4: Simplify right side
    1,124,078.56x = 994,001,627,274.06
  5. Step 5: Solve for x
    x = 994,001,627,274.06/1,124,078.56
  6. Step 6: Final answer
    x = 884,281.28

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Double scale
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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.