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Finding the Fourth Proportional to 310,514.70, 465,772.05 and 216,036.30

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Solution

The fourth proportional to 310,514.70, 465,772.05 and 216,036.30 is: 324,054.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,514.70 : 465,772.05 = 216,036.30 : x
  2. Step 2: Convert to fraction form
    310,514.70/465,772.05 = 216,036.30/x
  3. Step 3: Cross multiply
    310,514.70x = 465,772.05 × 216,036.30
  4. Step 4: Simplify right side
    310,514.70x = 100,623,670,325.42
  5. Step 5: Solve for x
    x = 100,623,670,325.42/310,514.70
  6. Step 6: Final answer
    x = 324,054.45

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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.