Home / 621,969.38-931,982.06-432,799.35

Finding the Fourth Proportional to 621,969.38, 931,982.06 and 432,799.35

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Solution

The fourth proportional to 621,969.38, 931,982.06 and 432,799.35 is: 648,522.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,969.38 : 931,982.06 = 432,799.35 : x
  2. Step 2: Convert to fraction form
    621,969.38/931,982.06 = 432,799.35/x
  3. Step 3: Cross multiply
    621,969.38x = 931,982.06 × 432,799.35
  4. Step 4: Simplify right side
    621,969.38x = 403,361,229,779.66
  5. Step 5: Solve for x
    x = 403,361,229,779.66/621,969.38
  6. Step 6: Final answer
    x = 648,522.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.