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Finding the Fourth Proportional to 607,096.20, 910,644.30 and 291,390.60

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Solution

The fourth proportional to 607,096.20, 910,644.30 and 291,390.60 is: 437,085.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    607,096.20 : 910,644.30 = 291,390.60 : x
  2. Step 2: Convert to fraction form
    607,096.20/910,644.30 = 291,390.60/x
  3. Step 3: Cross multiply
    607,096.20x = 910,644.30 × 291,390.60
  4. Step 4: Simplify right side
    607,096.20x = 265,353,188,963.58
  5. Step 5: Solve for x
    x = 265,353,188,963.58/607,096.20
  6. Step 6: Final answer
    x = 437,085.90

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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.