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Finding the Fourth Proportional to 607,257.20, 910,885.80 and 537,273.20

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Solution

The fourth proportional to 607,257.20, 910,885.80 and 537,273.20 is: 805,909.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    607,257.20 : 910,885.80 = 537,273.20 : x
  2. Step 2: Convert to fraction form
    607,257.20/910,885.80 = 537,273.20/x
  3. Step 3: Cross multiply
    607,257.20x = 910,885.80 × 537,273.20
  4. Step 4: Simplify right side
    607,257.20x = 489,394,528,600.56
  5. Step 5: Solve for x
    x = 489,394,528,600.56/607,257.20
  6. Step 6: Final answer
    x = 805,909.80

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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.