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Finding the Fourth Proportional to 362,572.80, 544,442.40 and 263,428.80

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Solution

The fourth proportional to 362,572.80, 544,442.40 and 263,428.80 is: 395,566.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    362,572.80 : 544,442.40 = 263,428.80 : x
  2. Step 2: Convert to fraction form
    362,572.80/544,442.40 = 263,428.80/x
  3. Step 3: Cross multiply
    362,572.80x = 544,442.40 × 263,428.80
  4. Step 4: Simplify right side
    362,572.80x = 143,421,808,101.12
  5. Step 5: Solve for x
    x = 143,421,808,101.12/362,572.80
  6. Step 6: Final answer
    x = 395,566.93

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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.