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Finding the Fourth Proportional to 522,374.16, 783,562.44 and 143,300.40

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Solution

The fourth proportional to 522,374.16, 783,562.44 and 143,300.40 is: 214,950.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    522,374.16 : 783,562.44 = 143,300.40 : x
  2. Step 2: Convert to fraction form
    522,374.16/783,562.44 = 143,300.40/x
  3. Step 3: Cross multiply
    522,374.16x = 783,562.44 × 143,300.40
  4. Step 4: Simplify right side
    522,374.16x = 112,284,811,076.98
  5. Step 5: Solve for x
    x = 112,284,811,076.98/522,374.16
  6. Step 6: Final answer
    x = 214,950.93

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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.