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Finding the Fourth Proportional to 624,387.84, 860,936.92 and 461,280.34

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Solution

The fourth proportional to 624,387.84, 860,936.92 and 461,280.34 is: 636,036.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,387.84 : 860,936.92 = 461,280.34 : x
  2. Step 2: Convert to fraction form
    624,387.84/860,936.92 = 461,280.34/x
  3. Step 3: Cross multiply
    624,387.84x = 860,936.92 × 461,280.34
  4. Step 4: Simplify right side
    624,387.84x = 397,133,275,176.15
  5. Step 5: Solve for x
    x = 397,133,275,176.15/624,387.84
  6. Step 6: Final answer
    x = 636,036.21

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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.