Home / 289,824.40-434,812.20-112,337.20

Finding the Fourth Proportional to 289,824.40, 434,812.20 and 112,337.20

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Solution

The fourth proportional to 289,824.40, 434,812.20 and 112,337.20 is: 168,535.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,824.40 : 434,812.20 = 112,337.20 : x
  2. Step 2: Convert to fraction form
    289,824.40/434,812.20 = 112,337.20/x
  3. Step 3: Cross multiply
    289,824.40x = 434,812.20 × 112,337.20
  4. Step 4: Simplify right side
    289,824.40x = 48,845,585,073.84
  5. Step 5: Solve for x
    x = 48,845,585,073.84/289,824.40
  6. Step 6: Final answer
    x = 168,535.10

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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.