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Finding the Fourth Proportional to 374,472.79, 516,775.89 and 213,325.45

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Solution

The fourth proportional to 374,472.79, 516,775.89 and 213,325.45 is: 294,391.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,472.79 : 516,775.89 = 213,325.45 : x
  2. Step 2: Convert to fraction form
    374,472.79/516,775.89 = 213,325.45/x
  3. Step 3: Cross multiply
    374,472.79x = 516,775.89 × 213,325.45
  4. Step 4: Simplify right side
    374,472.79x = 110,241,449,283.40
  5. Step 5: Solve for x
    x = 110,241,449,283.40/374,472.79
  6. Step 6: Final answer
    x = 294,391.08

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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.