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Finding the Fourth Proportional to 314,724.80, 473,008.80 and 274,174.40

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Solution

The fourth proportional to 314,724.80, 473,008.80 and 274,174.40 is: 412,064.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    314,724.80 : 473,008.80 = 274,174.40 : x
  2. Step 2: Convert to fraction form
    314,724.80/473,008.80 = 274,174.40/x
  3. Step 3: Cross multiply
    314,724.80x = 473,008.80 × 274,174.40
  4. Step 4: Simplify right side
    314,724.80x = 129,686,903,934.72
  5. Step 5: Solve for x
    x = 129,686,903,934.72/314,724.80
  6. Step 6: Final answer
    x = 412,064.46

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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.