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Finding the Fourth Proportional to 379,368.30, 569,052.45 and 332,712.30

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Solution

The fourth proportional to 379,368.30, 569,052.45 and 332,712.30 is: 499,068.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,368.30 : 569,052.45 = 332,712.30 : x
  2. Step 2: Convert to fraction form
    379,368.30/569,052.45 = 332,712.30/x
  3. Step 3: Cross multiply
    379,368.30x = 569,052.45 × 332,712.30
  4. Step 4: Simplify right side
    379,368.30x = 189,330,749,460.14
  5. Step 5: Solve for x
    x = 189,330,749,460.14/379,368.30
  6. Step 6: Final answer
    x = 499,068.45

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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.