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Finding the Fourth Proportional to 607,523.40, 911,285.10 and 327,587.40

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Solution

The fourth proportional to 607,523.40, 911,285.10 and 327,587.40 is: 491,381.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    607,523.40 : 911,285.10 = 327,587.40 : x
  2. Step 2: Convert to fraction form
    607,523.40/911,285.10 = 327,587.40/x
  3. Step 3: Cross multiply
    607,523.40x = 911,285.10 × 327,587.40
  4. Step 4: Simplify right side
    607,523.40x = 298,525,516,567.74
  5. Step 5: Solve for x
    x = 298,525,516,567.74/607,523.40
  6. Step 6: Final answer
    x = 491,381.10

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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.