Home / 587,582.50-811,111.92-396,854.20

Finding the Fourth Proportional to 587,582.50, 811,111.92 and 396,854.20

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Solution

The fourth proportional to 587,582.50, 811,111.92 and 396,854.20 is: 547,826.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    587,582.50 : 811,111.92 = 396,854.20 : x
  2. Step 2: Convert to fraction form
    587,582.50/811,111.92 = 396,854.20/x
  3. Step 3: Cross multiply
    587,582.50x = 811,111.92 × 396,854.20
  4. Step 4: Simplify right side
    587,582.50x = 321,893,172,122.06
  5. Step 5: Solve for x
    x = 321,893,172,122.06/587,582.50
  6. Step 6: Final answer
    x = 547,826.34

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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.