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Finding the Fourth Proportional to 662,003.70, 993,005.55 and 346,557.30

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Solution

The fourth proportional to 662,003.70, 993,005.55 and 346,557.30 is: 519,835.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,003.70 : 993,005.55 = 346,557.30 : x
  2. Step 2: Convert to fraction form
    662,003.70/993,005.55 = 346,557.30/x
  3. Step 3: Cross multiply
    662,003.70x = 993,005.55 × 346,557.30
  4. Step 4: Simplify right side
    662,003.70x = 344,133,322,293.02
  5. Step 5: Solve for x
    x = 344,133,322,293.02/662,003.70
  6. Step 6: Final answer
    x = 519,835.95

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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.