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Finding the Fourth Proportional to 555,540.40, 833,116.20 and 289,212.40

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Solution

The fourth proportional to 555,540.40, 833,116.20 and 289,212.40 is: 433,717.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,540.40 : 833,116.20 = 289,212.40 : x
  2. Step 2: Convert to fraction form
    555,540.40/833,116.20 = 289,212.40/x
  3. Step 3: Cross multiply
    555,540.40x = 833,116.20 × 289,212.40
  4. Step 4: Simplify right side
    555,540.40x = 240,947,535,680.88
  5. Step 5: Solve for x
    x = 240,947,535,680.88/555,540.40
  6. Step 6: Final answer
    x = 433,717.40

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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.