Home / 1,253,038.60-1,729,194-680,078.77

Finding the Fourth Proportional to 1,253,038.60, 1,729,194 and 680,078.77

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Solution

The fourth proportional to 1,253,038.60, 1,729,194 and 680,078.77 is: 938,509.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,253,038.60 : 1,729,194 = 680,078.77 : x
  2. Step 2: Convert to fraction form
    1,253,038.60/1,729,194 = 680,078.77/x
  3. Step 3: Cross multiply
    1,253,038.60x = 1,729,194 × 680,078.77
  4. Step 4: Simplify right side
    1,253,038.60x = 1,175,988,119,965.41
  5. Step 5: Solve for x
    x = 1,175,988,119,965.41/1,253,038.60
  6. Step 6: Final answer
    x = 938,509.10

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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.