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Finding the Fourth Proportional to 916.04, 1,263.90 and 584.94

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Solution

The fourth proportional to 916.04, 1,263.90 and 584.94 is: 807.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    916.04 : 1,263.90 = 584.94 : x
  2. Step 2: Convert to fraction form
    916.04/1,263.90 = 584.94/x
  3. Step 3: Cross multiply
    916.04x = 1,263.90 × 584.94
  4. Step 4: Simplify right side
    916.04x = 739,305.67
  5. Step 5: Solve for x
    x = 739,305.67/916.04
  6. Step 6: Final answer
    x = 807.07

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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.