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Finding the Fourth Proportional to 608,332.15, 912,764.94 and 288,714.85

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Solution

The fourth proportional to 608,332.15, 912,764.94 and 288,714.85 is: 433,198.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    608,332.15 : 912,764.94 = 288,714.85 : x
  2. Step 2: Convert to fraction form
    608,332.15/912,764.94 = 288,714.85/x
  3. Step 3: Cross multiply
    608,332.15x = 912,764.94 × 288,714.85
  4. Step 4: Simplify right side
    608,332.15x = 263,528,792,737.36
  5. Step 5: Solve for x
    x = 263,528,792,737.36/608,332.15
  6. Step 6: Final answer
    x = 433,198.86

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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.