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Finding the Fourth Proportional to 607,558.30, 911,337.45 and 253,264.30

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Solution

The fourth proportional to 607,558.30, 911,337.45 and 253,264.30 is: 379,896.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    607,558.30 : 911,337.45 = 253,264.30 : x
  2. Step 2: Convert to fraction form
    607,558.30/911,337.45 = 253,264.30/x
  3. Step 3: Cross multiply
    607,558.30x = 911,337.45 × 253,264.30
  4. Step 4: Simplify right side
    607,558.30x = 230,809,241,338.04
  5. Step 5: Solve for x
    x = 230,809,241,338.04/607,558.30
  6. Step 6: Final answer
    x = 379,896.45

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Double scale
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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.