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Finding the Fourth Proportional to 546,639.60, 754,363.78 and 304,915.92

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Solution

The fourth proportional to 546,639.60, 754,363.78 and 304,915.92 is: 420,784.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    546,639.60 : 754,363.78 = 304,915.92 : x
  2. Step 2: Convert to fraction form
    546,639.60/754,363.78 = 304,915.92/x
  3. Step 3: Cross multiply
    546,639.60x = 754,363.78 × 304,915.92
  4. Step 4: Simplify right side
    546,639.60x = 230,017,525,993.38
  5. Step 5: Solve for x
    x = 230,017,525,993.38/546,639.60
  6. Step 6: Final answer
    x = 420,784.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.