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Finding the Fourth Proportional to 3,068,657.80, 4,602,819.79 and 938,741.91

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Solution

The fourth proportional to 3,068,657.80, 4,602,819.79 and 938,741.91 is: 1,408,061.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,068,657.80 : 4,602,819.79 = 938,741.91 : x
  2. Step 2: Convert to fraction form
    3,068,657.80/4,602,819.79 = 938,741.91/x
  3. Step 3: Cross multiply
    3,068,657.80x = 4,602,819.79 × 938,741.91
  4. Step 4: Simplify right side
    3,068,657.80x = 4,320,859,841,050.40
  5. Step 5: Solve for x
    x = 4,320,859,841,050.40/3,068,657.80
  6. Step 6: Final answer
    x = 1,408,061.81

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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.