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Finding the Fourth Proportional to 346,807.46, 520,220.42 and 122,116.79

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Solution

The fourth proportional to 346,807.46, 520,220.42 and 122,116.79 is: 183,178.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,807.46 : 520,220.42 = 122,116.79 : x
  2. Step 2: Convert to fraction form
    346,807.46/520,220.42 = 122,116.79/x
  3. Step 3: Cross multiply
    346,807.46x = 520,220.42 × 122,116.79
  4. Step 4: Simplify right side
    346,807.46x = 63,527,644,571.17
  5. Step 5: Solve for x
    x = 63,527,644,571.17/346,807.46
  6. Step 6: Final answer
    x = 183,178.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.