Home / 323,904.90-485,893.80-99,263.55

Finding the Fourth Proportional to 323,904.90, 485,893.80 and 99,263.55

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Solution

The fourth proportional to 323,904.90, 485,893.80 and 99,263.55 is: 148,906.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,904.90 : 485,893.80 = 99,263.55 : x
  2. Step 2: Convert to fraction form
    323,904.90/485,893.80 = 99,263.55/x
  3. Step 3: Cross multiply
    323,904.90x = 485,893.80 × 99,263.55
  4. Step 4: Simplify right side
    323,904.90x = 48,231,543,510.99
  5. Step 5: Solve for x
    x = 48,231,543,510.99/323,904.90
  6. Step 6: Final answer
    x = 148,906.50

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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.