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Finding the Fourth Proportional to 533,838.15, 736,674.60 and 319,096.62

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Solution

The fourth proportional to 533,838.15, 736,674.60 and 319,096.62 is: 440,340.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    533,838.15 : 736,674.60 = 319,096.62 : x
  2. Step 2: Convert to fraction form
    533,838.15/736,674.60 = 319,096.62/x
  3. Step 3: Cross multiply
    533,838.15x = 736,674.60 × 319,096.62
  4. Step 4: Simplify right side
    533,838.15x = 235,070,374,899.85
  5. Step 5: Solve for x
    x = 235,070,374,899.85/533,838.15
  6. Step 6: Final answer
    x = 440,340.16

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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.