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Finding the Fourth Proportional to 462,848.30, 694,272.45 and 130,424.30

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Solution

The fourth proportional to 462,848.30, 694,272.45 and 130,424.30 is: 195,636.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    462,848.30 : 694,272.45 = 130,424.30 : x
  2. Step 2: Convert to fraction form
    462,848.30/694,272.45 = 130,424.30/x
  3. Step 3: Cross multiply
    462,848.30x = 694,272.45 × 130,424.30
  4. Step 4: Simplify right side
    462,848.30x = 90,549,998,300.54
  5. Step 5: Solve for x
    x = 90,549,998,300.54/462,848.30
  6. Step 6: Final answer
    x = 195,636.45

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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.