Home / 389,886.56-583,499.19-326,777.95

Finding the Fourth Proportional to 389,886.56, 583,499.19 and 326,777.95

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Solution

The fourth proportional to 389,886.56, 583,499.19 and 326,777.95 is: 489,051.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,886.56 : 583,499.19 = 326,777.95 : x
  2. Step 2: Convert to fraction form
    389,886.56/583,499.19 = 326,777.95/x
  3. Step 3: Cross multiply
    389,886.56x = 583,499.19 × 326,777.95
  4. Step 4: Simplify right side
    389,886.56x = 190,674,667,807.47
  5. Step 5: Solve for x
    x = 190,674,667,807.47/389,886.56
  6. Step 6: Final answer
    x = 489,051.65

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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.