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Finding the Fourth Proportional to 617,374.76, 925,430.64 and 417,716.24

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Solution

The fourth proportional to 617,374.76, 925,430.64 and 417,716.24 is: 626,147.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,374.76 : 925,430.64 = 417,716.24 : x
  2. Step 2: Convert to fraction form
    617,374.76/925,430.64 = 417,716.24/x
  3. Step 3: Cross multiply
    617,374.76x = 925,430.64 × 417,716.24
  4. Step 4: Simplify right side
    617,374.76x = 386,567,407,321.59
  5. Step 5: Solve for x
    x = 386,567,407,321.59/617,374.76
  6. Step 6: Final answer
    x = 626,147.09

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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.