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Finding the Fourth Proportional to 617,833.74, 926,886.45 and 351,718.86

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Solution

The fourth proportional to 617,833.74, 926,886.45 and 351,718.86 is: 527,655.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,833.74 : 926,886.45 = 351,718.86 : x
  2. Step 2: Convert to fraction form
    617,833.74/926,886.45 = 351,718.86/x
  3. Step 3: Cross multiply
    617,833.74x = 926,886.45 × 351,718.86
  4. Step 4: Simplify right side
    617,833.74x = 326,003,445,543.45
  5. Step 5: Solve for x
    x = 326,003,445,543.45/617,833.74
  6. Step 6: Final answer
    x = 527,655.62

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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.