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Finding the Fourth Proportional to 312,064.77, 430,661.58 and 182,985.29

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Solution

The fourth proportional to 312,064.77, 430,661.58 and 182,985.29 is: 252,526.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,064.77 : 430,661.58 = 182,985.29 : x
  2. Step 2: Convert to fraction form
    312,064.77/430,661.58 = 182,985.29/x
  3. Step 3: Cross multiply
    312,064.77x = 430,661.58 × 182,985.29
  4. Step 4: Simplify right side
    312,064.77x = 78,804,731,954.85
  5. Step 5: Solve for x
    x = 78,804,731,954.85/312,064.77
  6. Step 6: Final answer
    x = 252,526.85

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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.