Home / 666,529.53-999,897.98-217,145.78

Finding the Fourth Proportional to 666,529.53, 999,897.98 and 217,145.78

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Solution

The fourth proportional to 666,529.53, 999,897.98 and 217,145.78 is: 325,752.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    666,529.53 : 999,897.98 = 217,145.78 : x
  2. Step 2: Convert to fraction form
    666,529.53/999,897.98 = 217,145.78/x
  3. Step 3: Cross multiply
    666,529.53x = 999,897.98 × 217,145.78
  4. Step 4: Simplify right side
    666,529.53x = 217,123,628,201.54
  5. Step 5: Solve for x
    x = 217,123,628,201.54/666,529.53
  6. Step 6: Final answer
    x = 325,752.45

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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.