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Finding the Fourth Proportional to 322,430.10, 483,645.15 and 247,926.30

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Solution

The fourth proportional to 322,430.10, 483,645.15 and 247,926.30 is: 371,889.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,430.10 : 483,645.15 = 247,926.30 : x
  2. Step 2: Convert to fraction form
    322,430.10/483,645.15 = 247,926.30/x
  3. Step 3: Cross multiply
    322,430.10x = 483,645.15 × 247,926.30
  4. Step 4: Simplify right side
    322,430.10x = 119,908,352,552.45
  5. Step 5: Solve for x
    x = 119,908,352,552.45/322,430.10
  6. Step 6: Final answer
    x = 371,889.45

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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.