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Finding the Fourth Proportional to 664,511.66, 917,026.10 and 362,705.66

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Solution

The fourth proportional to 664,511.66, 917,026.10 and 362,705.66 is: 500,533.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,511.66 : 917,026.10 = 362,705.66 : x
  2. Step 2: Convert to fraction form
    664,511.66/917,026.10 = 362,705.66/x
  3. Step 3: Cross multiply
    664,511.66x = 917,026.10 × 362,705.66
  4. Step 4: Simplify right side
    664,511.66x = 332,610,556,837.73
  5. Step 5: Solve for x
    x = 332,610,556,837.73/664,511.66
  6. Step 6: Final answer
    x = 500,533.82

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.