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Finding the Fourth Proportional to 434,398.71, 651,627.22 and 118,858.35

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Solution

The fourth proportional to 434,398.71, 651,627.22 and 118,858.35 is: 178,295.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    434,398.71 : 651,627.22 = 118,858.35 : x
  2. Step 2: Convert to fraction form
    434,398.71/651,627.22 = 118,858.35/x
  3. Step 3: Cross multiply
    434,398.71x = 651,627.22 × 118,858.35
  4. Step 4: Simplify right side
    434,398.71x = 77,451,334,852.36
  5. Step 5: Solve for x
    x = 77,451,334,852.36/434,398.71
  6. Step 6: Final answer
    x = 178,295.50

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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.