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Finding the Fourth Proportional to 416,385.71, 624,485.14 and 191,530.22

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Solution

The fourth proportional to 416,385.71, 624,485.14 and 191,530.22 is: 287,252.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    416,385.71 : 624,485.14 = 191,530.22 : x
  2. Step 2: Convert to fraction form
    416,385.71/624,485.14 = 191,530.22/x
  3. Step 3: Cross multiply
    416,385.71x = 624,485.14 × 191,530.22
  4. Step 4: Simplify right side
    416,385.71x = 119,607,777,239.77
  5. Step 5: Solve for x
    x = 119,607,777,239.77/416,385.71
  6. Step 6: Final answer
    x = 287,252.36

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1.5x scale

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.