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Finding the Fourth Proportional to 666,549.40, 999,824.10 and 167,913.40

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Solution

The fourth proportional to 666,549.40, 999,824.10 and 167,913.40 is: 251,870.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    666,549.40 : 999,824.10 = 167,913.40 : x
  2. Step 2: Convert to fraction form
    666,549.40/999,824.10 = 167,913.40/x
  3. Step 3: Cross multiply
    666,549.40x = 999,824.10 × 167,913.40
  4. Step 4: Simplify right side
    666,549.40x = 167,883,864,032.94
  5. Step 5: Solve for x
    x = 167,883,864,032.94/666,549.40
  6. Step 6: Final answer
    x = 251,870.10

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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.