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Finding the Fourth Proportional to 358,312.40, 536,950.20 and 158,469.20

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Solution

The fourth proportional to 358,312.40, 536,950.20 and 158,469.20 is: 237,474.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,312.40 : 536,950.20 = 158,469.20 : x
  2. Step 2: Convert to fraction form
    358,312.40/536,950.20 = 158,469.20/x
  3. Step 3: Cross multiply
    358,312.40x = 536,950.20 × 158,469.20
  4. Step 4: Simplify right side
    358,312.40x = 85,090,068,633.84
  5. Step 5: Solve for x
    x = 85,090,068,633.84/358,312.40
  6. Step 6: Final answer
    x = 237,474.53

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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.