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Finding the Fourth Proportional to 691,594.29, 954,404.28 and 385,689.98

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Solution

The fourth proportional to 691,594.29, 954,404.28 and 385,689.98 is: 532,254.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    691,594.29 : 954,404.28 = 385,689.98 : x
  2. Step 2: Convert to fraction form
    691,594.29/954,404.28 = 385,689.98/x
  3. Step 3: Cross multiply
    691,594.29x = 954,404.28 × 385,689.98
  4. Step 4: Simplify right side
    691,594.29x = 368,104,170,051.13
  5. Step 5: Solve for x
    x = 368,104,170,051.13/691,594.29
  6. Step 6: Final answer
    x = 532,254.50

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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.