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Finding the Fourth Proportional to 310,323.90, 465,485.85 and 295,889.70

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Solution

The fourth proportional to 310,323.90, 465,485.85 and 295,889.70 is: 443,834.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,323.90 : 465,485.85 = 295,889.70 : x
  2. Step 2: Convert to fraction form
    310,323.90/465,485.85 = 295,889.70/x
  3. Step 3: Cross multiply
    310,323.90x = 465,485.85 × 295,889.70
  4. Step 4: Simplify right side
    310,323.90x = 137,732,468,510.75
  5. Step 5: Solve for x
    x = 137,732,468,510.75/310,323.90
  6. Step 6: Final answer
    x = 443,834.55

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Similar ratio
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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.