Home / 389,896.83-583,514.55-326,788.20

Finding the Fourth Proportional to 389,896.83, 583,514.55 and 326,788.20

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Solution

The fourth proportional to 389,896.83, 583,514.55 and 326,788.20 is: 489,066.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,896.83 : 583,514.55 = 326,788.20 : x
  2. Step 2: Convert to fraction form
    389,896.83/583,514.55 = 326,788.20/x
  3. Step 3: Cross multiply
    389,896.83x = 583,514.55 × 326,788.20
  4. Step 4: Simplify right side
    389,896.83x = 190,685,669,468.31
  5. Step 5: Solve for x
    x = 190,685,669,468.31/389,896.83
  6. Step 6: Final answer
    x = 489,066.99

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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.