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Finding the Fourth Proportional to 536,813.80, 805,220.70 and 359,866.60

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Solution

The fourth proportional to 536,813.80, 805,220.70 and 359,866.60 is: 539,799.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    536,813.80 : 805,220.70 = 359,866.60 : x
  2. Step 2: Convert to fraction form
    536,813.80/805,220.70 = 359,866.60/x
  3. Step 3: Cross multiply
    536,813.80x = 805,220.70 × 359,866.60
  4. Step 4: Simplify right side
    536,813.80x = 289,772,035,558.62
  5. Step 5: Solve for x
    x = 289,772,035,558.62/536,813.80
  6. Step 6: Final answer
    x = 539,799.90

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Similar ratio
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1.5x scale

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.