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Finding the Fourth Proportional to 539,607.20, 744,648.76 and 297,883.60

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Solution

The fourth proportional to 539,607.20, 744,648.76 and 297,883.60 is: 411,074.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,607.20 : 744,648.76 = 297,883.60 : x
  2. Step 2: Convert to fraction form
    539,607.20/744,648.76 = 297,883.60/x
  3. Step 3: Cross multiply
    539,607.20x = 744,648.76 × 297,883.60
  4. Step 4: Simplify right side
    539,607.20x = 221,818,653,364.34
  5. Step 5: Solve for x
    x = 221,818,653,364.34/539,607.20
  6. Step 6: Final answer
    x = 411,074.30

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Similar ratio
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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.