Home / 1,243,405.83-1,865,108.63-344,847.54

Finding the Fourth Proportional to 1,243,405.83, 1,865,108.63 and 344,847.54

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Solution

The fourth proportional to 1,243,405.83, 1,865,108.63 and 344,847.54 is: 517,271.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,243,405.83 : 1,865,108.63 = 344,847.54 : x
  2. Step 2: Convert to fraction form
    1,243,405.83/1,865,108.63 = 344,847.54/x
  3. Step 3: Cross multiply
    1,243,405.83x = 1,865,108.63 × 344,847.54
  4. Step 4: Simplify right side
    1,243,405.83x = 643,178,122,888.27
  5. Step 5: Solve for x
    x = 643,178,122,888.27/1,243,405.83
  6. Step 6: Final answer
    x = 517,271.28

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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.