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Finding the Fourth Proportional to 404,460.50, 558,155.49 and 225,612.50

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Solution

The fourth proportional to 404,460.50, 558,155.49 and 225,612.50 is: 311,345.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,460.50 : 558,155.49 = 225,612.50 : x
  2. Step 2: Convert to fraction form
    404,460.50/558,155.49 = 225,612.50/x
  3. Step 3: Cross multiply
    404,460.50x = 558,155.49 × 225,612.50
  4. Step 4: Simplify right side
    404,460.50x = 125,926,855,487.63
  5. Step 5: Solve for x
    x = 125,926,855,487.63/404,460.50
  6. Step 6: Final answer
    x = 311,345.25

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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.