Home / 1,245,258.40-1,867,887.60-403,799.20

Finding the Fourth Proportional to 1,245,258.40, 1,867,887.60 and 403,799.20

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Solution

The fourth proportional to 1,245,258.40, 1,867,887.60 and 403,799.20 is: 605,698.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,245,258.40 : 1,867,887.60 = 403,799.20 : x
  2. Step 2: Convert to fraction form
    1,245,258.40/1,867,887.60 = 403,799.20/x
  3. Step 3: Cross multiply
    1,245,258.40x = 1,867,887.60 × 403,799.20
  4. Step 4: Simplify right side
    1,245,258.40x = 754,251,518,569.92
  5. Step 5: Solve for x
    x = 754,251,518,569.92/1,245,258.40
  6. Step 6: Final answer
    x = 605,698.80

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1.5x scale

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.