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Finding the Fourth Proportional to 628,673.44, 943,019.94 and 349,962.16

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Solution

The fourth proportional to 628,673.44, 943,019.94 and 349,962.16 is: 524,948.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,673.44 : 943,019.94 = 349,962.16 : x
  2. Step 2: Convert to fraction form
    628,673.44/943,019.94 = 349,962.16/x
  3. Step 3: Cross multiply
    628,673.44x = 943,019.94 × 349,962.16
  4. Step 4: Simplify right side
    628,673.44x = 330,021,295,125.47
  5. Step 5: Solve for x
    x = 330,021,295,125.47/628,673.44
  6. Step 6: Final answer
    x = 524,948.68

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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.