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Finding the Fourth Proportional to 578,048.24, 865,950.73 and 425,969.42

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Solution

The fourth proportional to 578,048.24, 865,950.73 and 425,969.42 is: 638,127.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,048.24 : 865,950.73 = 425,969.42 : x
  2. Step 2: Convert to fraction form
    578,048.24/865,950.73 = 425,969.42/x
  3. Step 3: Cross multiply
    578,048.24x = 865,950.73 × 425,969.42
  4. Step 4: Simplify right side
    578,048.24x = 368,868,524,812.00
  5. Step 5: Solve for x
    x = 368,868,524,812.00/578,048.24
  6. Step 6: Final answer
    x = 638,127.58

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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.