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Finding the Fourth Proportional to 563,180.80, 777,187.20 and 308,547.84

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Solution

The fourth proportional to 563,180.80, 777,187.20 and 308,547.84 is: 425,794.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    563,180.80 : 777,187.20 = 308,547.84 : x
  2. Step 2: Convert to fraction form
    563,180.80/777,187.20 = 308,547.84/x
  3. Step 3: Cross multiply
    563,180.80x = 777,187.20 × 308,547.84
  4. Step 4: Simplify right side
    563,180.80x = 239,799,431,835.65
  5. Step 5: Solve for x
    x = 239,799,431,835.65/563,180.80
  6. Step 6: Final answer
    x = 425,794.76

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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.