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Finding the Fourth Proportional to 1,040,064, 1,435,288.32 and 563,136

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Solution

The fourth proportional to 1,040,064, 1,435,288.32 and 563,136 is: 777,127.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,040,064 : 1,435,288.32 = 563,136 : x
  2. Step 2: Convert to fraction form
    1,040,064/1,435,288.32 = 563,136/x
  3. Step 3: Cross multiply
    1,040,064x = 1,435,288.32 × 563,136
  4. Step 4: Simplify right side
    1,040,064x = 808,262,523,371.52
  5. Step 5: Solve for x
    x = 808,262,523,371.52/1,040,064
  6. Step 6: Final answer
    x = 777,127.68

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.