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Finding the Fourth Proportional to 369,339.65, 509,689.01 and 199,573.77

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Solution

The fourth proportional to 369,339.65, 509,689.01 and 199,573.77 is: 275,411.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,339.65 : 509,689.01 = 199,573.77 : x
  2. Step 2: Convert to fraction form
    369,339.65/509,689.01 = 199,573.77/x
  3. Step 3: Cross multiply
    369,339.65x = 509,689.01 × 199,573.77
  4. Step 4: Simplify right side
    369,339.65x = 101,720,556,255.40
  5. Step 5: Solve for x
    x = 101,720,556,255.40/369,339.65
  6. Step 6: Final answer
    x = 275,411.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.