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Finding the Fourth Proportional to 562,876.20, 776,767.86 and 308,225.16

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Solution

The fourth proportional to 562,876.20, 776,767.86 and 308,225.16 is: 425,350.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    562,876.20 : 776,767.86 = 308,225.16 : x
  2. Step 2: Convert to fraction form
    562,876.20/776,767.86 = 308,225.16/x
  3. Step 3: Cross multiply
    562,876.20x = 776,767.86 × 308,225.16
  4. Step 4: Simplify right side
    562,876.20x = 239,419,397,931.36
  5. Step 5: Solve for x
    x = 239,419,397,931.36/562,876.20
  6. Step 6: Final answer
    x = 425,350.01

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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.