Home / 324,985.60-487,766.40-191,699.20

Finding the Fourth Proportional to 324,985.60, 487,766.40 and 191,699.20

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Solution

The fourth proportional to 324,985.60, 487,766.40 and 191,699.20 is: 287,718.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,985.60 : 487,766.40 = 191,699.20 : x
  2. Step 2: Convert to fraction form
    324,985.60/487,766.40 = 191,699.20/x
  3. Step 3: Cross multiply
    324,985.60x = 487,766.40 × 191,699.20
  4. Step 4: Simplify right side
    324,985.60x = 93,504,428,666.88
  5. Step 5: Solve for x
    x = 93,504,428,666.88/324,985.60
  6. Step 6: Final answer
    x = 287,718.68

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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.