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Finding the Fourth Proportional to 346,714.70, 520,072.05 and 147,001.10

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Solution

The fourth proportional to 346,714.70, 520,072.05 and 147,001.10 is: 220,501.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,714.70 : 520,072.05 = 147,001.10 : x
  2. Step 2: Convert to fraction form
    346,714.70/520,072.05 = 147,001.10/x
  3. Step 3: Cross multiply
    346,714.70x = 520,072.05 × 147,001.10
  4. Step 4: Simplify right side
    346,714.70x = 76,451,163,429.26
  5. Step 5: Solve for x
    x = 76,451,163,429.26/346,714.70
  6. Step 6: Final answer
    x = 220,501.65

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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.