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Finding the Fourth Proportional to 536,429.20, 804,643.80 and 528,134.80

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Solution

The fourth proportional to 536,429.20, 804,643.80 and 528,134.80 is: 792,202.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    536,429.20 : 804,643.80 = 528,134.80 : x
  2. Step 2: Convert to fraction form
    536,429.20/804,643.80 = 528,134.80/x
  3. Step 3: Cross multiply
    536,429.20x = 804,643.80 × 528,134.80
  4. Step 4: Simplify right side
    536,429.20x = 424,960,392,384.24
  5. Step 5: Solve for x
    x = 424,960,392,384.24/536,429.20
  6. Step 6: Final answer
    x = 792,202.20

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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.