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Finding the Fourth Proportional to 689,037.76, 950,854.38 and 383,098.30

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Solution

The fourth proportional to 689,037.76, 950,854.38 and 383,098.30 is: 528,665.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,037.76 : 950,854.38 = 383,098.30 : x
  2. Step 2: Convert to fraction form
    689,037.76/950,854.38 = 383,098.30/x
  3. Step 3: Cross multiply
    689,037.76x = 950,854.38 × 383,098.30
  4. Step 4: Simplify right side
    689,037.76x = 364,270,696,525.55
  5. Step 5: Solve for x
    x = 364,270,696,525.55/689,037.76
  6. Step 6: Final answer
    x = 528,665.80

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1.5x scale

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.