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Finding the Fourth Proportional to 626,339.33, 939,500.80 and 153,028.79

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Solution

The fourth proportional to 626,339.33, 939,500.80 and 153,028.79 is: 229,541.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,339.33 : 939,500.80 = 153,028.79 : x
  2. Step 2: Convert to fraction form
    626,339.33/939,500.80 = 153,028.79/x
  3. Step 3: Cross multiply
    626,339.33x = 939,500.80 × 153,028.79
  4. Step 4: Simplify right side
    626,339.33x = 143,770,665,547.96
  5. Step 5: Solve for x
    x = 143,770,665,547.96/626,339.33
  6. Step 6: Final answer
    x = 229,541.18

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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.