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Finding the Fourth Proportional to 694,037.62, 957,774.47 and 403,718.85

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Solution

The fourth proportional to 694,037.62, 957,774.47 and 403,718.85 is: 557,133.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    694,037.62 : 957,774.47 = 403,718.85 : x
  2. Step 2: Convert to fraction form
    694,037.62/957,774.47 = 403,718.85/x
  3. Step 3: Cross multiply
    694,037.62x = 957,774.47 × 403,718.85
  4. Step 4: Simplify right side
    694,037.62x = 386,671,607,587.76
  5. Step 5: Solve for x
    x = 386,671,607,587.76/694,037.62
  6. Step 6: Final answer
    x = 557,133.50

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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.