Home / 621,269.25-856,930.08-403,088.12

Finding the Fourth Proportional to 621,269.25, 856,930.08 and 403,088.12

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Solution

The fourth proportional to 621,269.25, 856,930.08 and 403,088.12 is: 555,988.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,269.25 : 856,930.08 = 403,088.12 : x
  2. Step 2: Convert to fraction form
    621,269.25/856,930.08 = 403,088.12/x
  3. Step 3: Cross multiply
    621,269.25x = 856,930.08 × 403,088.12
  4. Step 4: Simplify right side
    621,269.25x = 345,418,334,918.65
  5. Step 5: Solve for x
    x = 345,418,334,918.65/621,269.25
  6. Step 6: Final answer
    x = 555,988.14

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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.