Home / 289,517.03-399,533.55-160,463.84

Finding the Fourth Proportional to 289,517.03, 399,533.55 and 160,463.84

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Solution

The fourth proportional to 289,517.03, 399,533.55 and 160,463.84 is: 221,440.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,517.03 : 399,533.55 = 160,463.84 : x
  2. Step 2: Convert to fraction form
    289,517.03/399,533.55 = 160,463.84/x
  3. Step 3: Cross multiply
    289,517.03x = 399,533.55 × 160,463.84
  4. Step 4: Simplify right side
    289,517.03x = 64,110,687,641.83
  5. Step 5: Solve for x
    x = 64,110,687,641.83/289,517.03
  6. Step 6: Final answer
    x = 221,440.13

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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.