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Finding the Fourth Proportional to 498,801.60, 748,056.60 and 178,916.40

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Solution

The fourth proportional to 498,801.60, 748,056.60 and 178,916.40 is: 268,322.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,801.60 : 748,056.60 = 178,916.40 : x
  2. Step 2: Convert to fraction form
    498,801.60/748,056.60 = 178,916.40/x
  3. Step 3: Cross multiply
    498,801.60x = 748,056.60 × 178,916.40
  4. Step 4: Simplify right side
    498,801.60x = 133,839,593,868.24
  5. Step 5: Solve for x
    x = 133,839,593,868.24/498,801.60
  6. Step 6: Final answer
    x = 268,322.30

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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.