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Finding the Fourth Proportional to 536,726.40, 805,089.60 and 412,310.40

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Solution

The fourth proportional to 536,726.40, 805,089.60 and 412,310.40 is: 618,465.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    536,726.40 : 805,089.60 = 412,310.40 : x
  2. Step 2: Convert to fraction form
    536,726.40/805,089.60 = 412,310.40/x
  3. Step 3: Cross multiply
    536,726.40x = 805,089.60 × 412,310.40
  4. Step 4: Simplify right side
    536,726.40x = 331,946,815,011.84
  5. Step 5: Solve for x
    x = 331,946,815,011.84/536,726.40
  6. Step 6: Final answer
    x = 618,465.60

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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.