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Finding the Fourth Proportional to 6,590,647.32, 9,878,995.66 and 2,998,936.46

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Solution

The fourth proportional to 6,590,647.32, 9,878,995.66 and 2,998,936.46 is: 4,495,230.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,590,647.32 : 9,878,995.66 = 2,998,936.46 : x
  2. Step 2: Convert to fraction form
    6,590,647.32/9,878,995.66 = 2,998,936.46/x
  3. Step 3: Cross multiply
    6,590,647.32x = 9,878,995.66 × 2,998,936.46
  4. Step 4: Simplify right side
    6,590,647.32x = 29,626,480,272,955.77
  5. Step 5: Solve for x
    x = 29,626,480,272,955.77/6,590,647.32
  6. Step 6: Final answer
    x = 4,495,230.72

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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.