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Finding the Fourth Proportional to 560,859.50, 773,982.08 and 306,210.69

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Solution

The fourth proportional to 560,859.50, 773,982.08 and 306,210.69 is: 422,568.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    560,859.50 : 773,982.08 = 306,210.69 : x
  2. Step 2: Convert to fraction form
    560,859.50/773,982.08 = 306,210.69/x
  3. Step 3: Cross multiply
    560,859.50x = 773,982.08 × 306,210.69
  4. Step 4: Simplify right side
    560,859.50x = 237,001,585,233.38
  5. Step 5: Solve for x
    x = 237,001,585,233.38/560,859.50
  6. Step 6: Final answer
    x = 422,568.55

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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.