Home / 1,243,648.34-1,865,263.83-345,181.36

Finding the Fourth Proportional to 1,243,648.34, 1,865,263.83 and 345,181.36

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Solution

The fourth proportional to 1,243,648.34, 1,865,263.83 and 345,181.36 is: 517,714.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,243,648.34 : 1,865,263.83 = 345,181.36 : x
  2. Step 2: Convert to fraction form
    1,243,648.34/1,865,263.83 = 345,181.36/x
  3. Step 3: Cross multiply
    1,243,648.34x = 1,865,263.83 × 345,181.36
  4. Step 4: Simplify right side
    1,243,648.34x = 643,854,296,271.89
  5. Step 5: Solve for x
    x = 643,854,296,271.89/1,243,648.34
  6. Step 6: Final answer
    x = 517,714.11

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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.