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Finding the Fourth Proportional to 562,853.53, 776,730.09 and 308,204.65

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Solution

The fourth proportional to 562,853.53, 776,730.09 and 308,204.65 is: 425,318.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    562,853.53 : 776,730.09 = 308,204.65 : x
  2. Step 2: Convert to fraction form
    562,853.53/776,730.09 = 308,204.65/x
  3. Step 3: Cross multiply
    562,853.53x = 776,730.09 × 308,204.65
  4. Step 4: Simplify right side
    562,853.53x = 239,391,825,532.92
  5. Step 5: Solve for x
    x = 239,391,825,532.92/562,853.53
  6. Step 6: Final answer
    x = 425,318.16

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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.