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Finding the Fourth Proportional to 562,877.20, 776,769.24 and 308,226.16

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Solution

The fourth proportional to 562,877.20, 776,769.24 and 308,226.16 is: 425,351.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    562,877.20 : 776,769.24 = 308,226.16 : x
  2. Step 2: Convert to fraction form
    562,877.20/776,769.24 = 308,226.16/x
  3. Step 3: Cross multiply
    562,877.20x = 776,769.24 × 308,226.16
  4. Step 4: Simplify right side
    562,877.20x = 239,420,600,051.32
  5. Step 5: Solve for x
    x = 239,420,600,051.32/562,877.20
  6. Step 6: Final answer
    x = 425,351.39

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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.