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Finding the Fourth Proportional to 507,786.30, 700,819.70 and 292,884.39

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Solution

The fourth proportional to 507,786.30, 700,819.70 and 292,884.39 is: 404,223.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    507,786.30 : 700,819.70 = 292,884.39 : x
  2. Step 2: Convert to fraction form
    507,786.30/700,819.70 = 292,884.39/x
  3. Step 3: Cross multiply
    507,786.30x = 700,819.70 × 292,884.39
  4. Step 4: Simplify right side
    507,786.30x = 205,259,148,870.06
  5. Step 5: Solve for x
    x = 205,259,148,870.06/507,786.30
  6. Step 6: Final answer
    x = 404,223.49

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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.