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Finding the Fourth Proportional to 567,975.76, 783,793.92 and 313,326.88

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Solution

The fourth proportional to 567,975.76, 783,793.92 and 313,326.88 is: 432,384.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    567,975.76 : 783,793.92 = 313,326.88 : x
  2. Step 2: Convert to fraction form
    567,975.76/783,793.92 = 313,326.88/x
  3. Step 3: Cross multiply
    567,975.76x = 783,793.92 × 313,326.88
  4. Step 4: Simplify right side
    567,975.76x = 245,583,703,516.57
  5. Step 5: Solve for x
    x = 245,583,703,516.57/567,975.76
  6. Step 6: Final answer
    x = 432,384.13

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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.