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Finding the Fourth Proportional to 607,199.64, 911,355.06 and 307,886.82

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Solution

The fourth proportional to 607,199.64, 911,355.06 and 307,886.82 is: 462,111.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    607,199.64 : 911,355.06 = 307,886.82 : x
  2. Step 2: Convert to fraction form
    607,199.64/911,355.06 = 307,886.82/x
  3. Step 3: Cross multiply
    607,199.64x = 911,355.06 × 307,886.82
  4. Step 4: Simplify right side
    607,199.64x = 280,594,211,314.31
  5. Step 5: Solve for x
    x = 280,594,211,314.31/607,199.64
  6. Step 6: Final answer
    x = 462,111.95

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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.