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Finding the Fourth Proportional to 303,854.28, 455,915.04 and 161,666.11

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Solution

The fourth proportional to 303,854.28, 455,915.04 and 161,666.11 is: 242,570.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,854.28 : 455,915.04 = 161,666.11 : x
  2. Step 2: Convert to fraction form
    303,854.28/455,915.04 = 161,666.11/x
  3. Step 3: Cross multiply
    303,854.28x = 455,915.04 × 161,666.11
  4. Step 4: Simplify right side
    303,854.28x = 73,706,011,007.29
  5. Step 5: Solve for x
    x = 73,706,011,007.29/303,854.28
  6. Step 6: Final answer
    x = 242,570.26

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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.