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Finding the Fourth Proportional to 551,345.40, 825,462.90 and 535,793.40

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Solution

The fourth proportional to 551,345.40, 825,462.90 and 535,793.40 is: 802,178.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,345.40 : 825,462.90 = 535,793.40 : x
  2. Step 2: Convert to fraction form
    551,345.40/825,462.90 = 535,793.40/x
  3. Step 3: Cross multiply
    551,345.40x = 825,462.90 × 535,793.40
  4. Step 4: Simplify right side
    551,345.40x = 442,277,573,764.86
  5. Step 5: Solve for x
    x = 442,277,573,764.86/551,345.40
  6. Step 6: Final answer
    x = 802,178.77

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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.