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Finding the Fourth Proportional to 562,437.62, 776,162.49 and 307,786.58

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Solution

The fourth proportional to 562,437.62, 776,162.49 and 307,786.58 is: 424,744.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    562,437.62 : 776,162.49 = 307,786.58 : x
  2. Step 2: Convert to fraction form
    562,437.62/776,162.49 = 307,786.58/x
  3. Step 3: Cross multiply
    562,437.62x = 776,162.49 × 307,786.58
  4. Step 4: Simplify right side
    562,437.62x = 238,892,398,321.38
  5. Step 5: Solve for x
    x = 238,892,398,321.38/562,437.62
  6. Step 6: Final answer
    x = 424,744.70

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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.