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Finding the Fourth Proportional to 460,913.60, 691,888.80 and 356,196.80

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Solution

The fourth proportional to 460,913.60, 691,888.80 and 356,196.80 is: 534,695.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    460,913.60 : 691,888.80 = 356,196.80 : x
  2. Step 2: Convert to fraction form
    460,913.60/691,888.80 = 356,196.80/x
  3. Step 3: Cross multiply
    460,913.60x = 691,888.80 × 356,196.80
  4. Step 4: Simplify right side
    460,913.60x = 246,448,576,515.84
  5. Step 5: Solve for x
    x = 246,448,576,515.84/460,913.60
  6. Step 6: Final answer
    x = 534,695.82

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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.