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Finding the Fourth Proportional to 407,988.96, 610,673.76 and 217,974.48

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Solution

The fourth proportional to 407,988.96, 610,673.76 and 217,974.48 is: 326,262.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    407,988.96 : 610,673.76 = 217,974.48 : x
  2. Step 2: Convert to fraction form
    407,988.96/610,673.76 = 217,974.48/x
  3. Step 3: Cross multiply
    407,988.96x = 610,673.76 × 217,974.48
  4. Step 4: Simplify right side
    407,988.96x = 133,111,295,285.65
  5. Step 5: Solve for x
    x = 133,111,295,285.65/407,988.96
  6. Step 6: Final answer
    x = 326,262.00

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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.