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Finding the Fourth Proportional to 1,717,325.70, 2,369,920.05 and 942,990

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Solution

The fourth proportional to 1,717,325.70, 2,369,920.05 and 942,990 is: 1,301,332.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,717,325.70 : 2,369,920.05 = 942,990 : x
  2. Step 2: Convert to fraction form
    1,717,325.70/2,369,920.05 = 942,990/x
  3. Step 3: Cross multiply
    1,717,325.70x = 2,369,920.05 × 942,990
  4. Step 4: Simplify right side
    1,717,325.70x = 2,234,810,907,949.50
  5. Step 5: Solve for x
    x = 2,234,810,907,949.50/1,717,325.70
  6. Step 6: Final answer
    x = 1,301,332.01

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.