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Finding the Fourth Proportional to 417,774.76, 626,686.45 and 118,230.28

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Solution

The fourth proportional to 417,774.76, 626,686.45 and 118,230.28 is: 177,352.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    417,774.76 : 626,686.45 = 118,230.28 : x
  2. Step 2: Convert to fraction form
    417,774.76/626,686.45 = 118,230.28/x
  3. Step 3: Cross multiply
    417,774.76x = 626,686.45 × 118,230.28
  4. Step 4: Simplify right side
    417,774.76x = 74,093,314,455.71
  5. Step 5: Solve for x
    x = 74,093,314,455.71/417,774.76
  6. Step 6: Final answer
    x = 177,352.30

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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.