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Finding the Fourth Proportional to 664,837.83, 917,479.58 and 363,031.83

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Solution

The fourth proportional to 664,837.83, 917,479.58 and 363,031.83 is: 500,985.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,837.83 : 917,479.58 = 363,031.83 : x
  2. Step 2: Convert to fraction form
    664,837.83/917,479.58 = 363,031.83/x
  3. Step 3: Cross multiply
    664,837.83x = 917,479.58 × 363,031.83
  4. Step 4: Simplify right side
    664,837.83x = 333,074,289,099.87
  5. Step 5: Solve for x
    x = 333,074,289,099.87/664,837.83
  6. Step 6: Final answer
    x = 500,985.77

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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.