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Finding the Fourth Proportional to 492,714.30, 739,071.45 and 374,616.30

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Solution

The fourth proportional to 492,714.30, 739,071.45 and 374,616.30 is: 561,924.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,714.30 : 739,071.45 = 374,616.30 : x
  2. Step 2: Convert to fraction form
    492,714.30/739,071.45 = 374,616.30/x
  3. Step 3: Cross multiply
    492,714.30x = 739,071.45 × 374,616.30
  4. Step 4: Simplify right side
    492,714.30x = 276,868,212,034.64
  5. Step 5: Solve for x
    x = 276,868,212,034.64/492,714.30
  6. Step 6: Final answer
    x = 561,924.45

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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.