Home / 286,917.66-396,230.40-236,430.72

Finding the Fourth Proportional to 286,917.66, 396,230.40 and 236,430.72

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Solution

The fourth proportional to 286,917.66, 396,230.40 and 236,430.72 is: 326,508.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,917.66 : 396,230.40 = 236,430.72 : x
  2. Step 2: Convert to fraction form
    286,917.66/396,230.40 = 236,430.72/x
  3. Step 3: Cross multiply
    286,917.66x = 396,230.40 × 236,430.72
  4. Step 4: Simplify right side
    286,917.66x = 93,681,038,757.89
  5. Step 5: Solve for x
    x = 93,681,038,757.89/286,917.66
  6. Step 6: Final answer
    x = 326,508.44

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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.