Home / 563,474.24-777,559.20-308,807.36

Finding the Fourth Proportional to 563,474.24, 777,559.20 and 308,807.36

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Solution

The fourth proportional to 563,474.24, 777,559.20 and 308,807.36 is: 426,134.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    563,474.24 : 777,559.20 = 308,807.36 : x
  2. Step 2: Convert to fraction form
    563,474.24/777,559.20 = 308,807.36/x
  3. Step 3: Cross multiply
    563,474.24x = 777,559.20 × 308,807.36
  4. Step 4: Simplify right side
    563,474.24x = 240,116,003,795.71
  5. Step 5: Solve for x
    x = 240,116,003,795.71/563,474.24
  6. Step 6: Final answer
    x = 426,134.84

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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.