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Finding the Fourth Proportional to 533,920.48, 736,737.54 and 319,015.12

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Solution

The fourth proportional to 533,920.48, 736,737.54 and 319,015.12 is: 440,197.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    533,920.48 : 736,737.54 = 319,015.12 : x
  2. Step 2: Convert to fraction form
    533,920.48/736,737.54 = 319,015.12/x
  3. Step 3: Cross multiply
    533,920.48x = 736,737.54 × 319,015.12
  4. Step 4: Simplify right side
    533,920.48x = 235,030,414,731.61
  5. Step 5: Solve for x
    x = 235,030,414,731.61/533,920.48
  6. Step 6: Final answer
    x = 440,197.41

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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.