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Finding the Fourth Proportional to 402,465.64, 603,785.58 and 122,004.04

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Solution

The fourth proportional to 402,465.64, 603,785.58 and 122,004.04 is: 183,032.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,465.64 : 603,785.58 = 122,004.04 : x
  2. Step 2: Convert to fraction form
    402,465.64/603,785.58 = 122,004.04/x
  3. Step 3: Cross multiply
    402,465.64x = 603,785.58 × 122,004.04
  4. Step 4: Simplify right side
    402,465.64x = 73,664,280,053.74
  5. Step 5: Solve for x
    x = 73,664,280,053.74/402,465.64
  6. Step 6: Final answer
    x = 183,032.47

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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.