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Finding the Fourth Proportional to 623,854.56, 860,921.28 and 337,376.64

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Solution

The fourth proportional to 623,854.56, 860,921.28 and 337,376.64 is: 465,580.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    623,854.56 : 860,921.28 = 337,376.64 : x
  2. Step 2: Convert to fraction form
    623,854.56/860,921.28 = 337,376.64/x
  3. Step 3: Cross multiply
    623,854.56x = 860,921.28 × 337,376.64
  4. Step 4: Simplify right side
    623,854.56x = 290,454,728,750.90
  5. Step 5: Solve for x
    x = 290,454,728,750.90/623,854.56
  6. Step 6: Final answer
    x = 465,580.84

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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.