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Finding the Fourth Proportional to 666,533.91, 999,904.55 and 217,150.17

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Solution

The fourth proportional to 666,533.91, 999,904.55 and 217,150.17 is: 325,759.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    666,533.91 : 999,904.55 = 217,150.17 : x
  2. Step 2: Convert to fraction form
    666,533.91/999,904.55 = 217,150.17/x
  3. Step 3: Cross multiply
    666,533.91x = 999,904.55 × 217,150.17
  4. Step 4: Simplify right side
    666,533.91x = 217,129,443,016.27
  5. Step 5: Solve for x
    x = 217,129,443,016.27/666,533.91
  6. Step 6: Final answer
    x = 325,759.03

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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.