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Finding the Fourth Proportional to 932,607.78, 1,286,998.78 and 530,199.78

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Solution

The fourth proportional to 932,607.78, 1,286,998.78 and 530,199.78 is: 731,675.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    932,607.78 : 1,286,998.78 = 530,199.78 : x
  2. Step 2: Convert to fraction form
    932,607.78/1,286,998.78 = 530,199.78/x
  3. Step 3: Cross multiply
    932,607.78x = 1,286,998.78 × 530,199.78
  4. Step 4: Simplify right side
    932,607.78x = 682,366,470,016.27
  5. Step 5: Solve for x
    x = 682,366,470,016.27/932,607.78
  6. Step 6: Final answer
    x = 731,675.72

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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.