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Finding the Fourth Proportional to 536,643.60, 804,965.40 and 347,686.80

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Solution

The fourth proportional to 536,643.60, 804,965.40 and 347,686.80 is: 521,530.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    536,643.60 : 804,965.40 = 347,686.80 : x
  2. Step 2: Convert to fraction form
    536,643.60/804,965.40 = 347,686.80/x
  3. Step 3: Cross multiply
    536,643.60x = 804,965.40 × 347,686.80
  4. Step 4: Simplify right side
    536,643.60x = 279,875,844,036.72
  5. Step 5: Solve for x
    x = 279,875,844,036.72/536,643.60
  6. Step 6: Final answer
    x = 521,530.20

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Similar ratio
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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.