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Finding the Fourth Proportional to 705.97, 1,056.07 and 590.77

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Solution

The fourth proportional to 705.97, 1,056.07 and 590.77 is: 883.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    705.97 : 1,056.07 = 590.77 : x
  2. Step 2: Convert to fraction form
    705.97/1,056.07 = 590.77/x
  3. Step 3: Cross multiply
    705.97x = 1,056.07 × 590.77
  4. Step 4: Simplify right side
    705.97x = 623,894.47
  5. Step 5: Solve for x
    x = 623,894.47/705.97
  6. Step 6: Final answer
    x = 883.74

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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.