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Finding the Fourth Proportional to 462,028.40, 693,042.60 and 455,807.60

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Solution

The fourth proportional to 462,028.40, 693,042.60 and 455,807.60 is: 683,711.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    462,028.40 : 693,042.60 = 455,807.60 : x
  2. Step 2: Convert to fraction form
    462,028.40/693,042.60 = 455,807.60/x
  3. Step 3: Cross multiply
    462,028.40x = 693,042.60 × 455,807.60
  4. Step 4: Simplify right side
    462,028.40x = 315,894,084,203.76
  5. Step 5: Solve for x
    x = 315,894,084,203.76/462,028.40
  6. Step 6: Final answer
    x = 683,711.40

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Similar ratio
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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.