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Finding the Fourth Proportional to 4,867,978.60, 7,301,276.70 and 1,673,252.20

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Solution

The fourth proportional to 4,867,978.60, 7,301,276.70 and 1,673,252.20 is: 2,509,640.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,867,978.60 : 7,301,276.70 = 1,673,252.20 : x
  2. Step 2: Convert to fraction form
    4,867,978.60/7,301,276.70 = 1,673,252.20/x
  3. Step 3: Cross multiply
    4,867,978.60x = 7,301,276.70 × 1,673,252.20
  4. Step 4: Simplify right side
    4,867,978.60x = 12,216,877,301,083.74
  5. Step 5: Solve for x
    x = 12,216,877,301,083.74/4,867,978.60
  6. Step 6: Final answer
    x = 2,509,640.72

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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.