Home / 1,091,381.40-1,636,672.98-417,129.30

Finding the Fourth Proportional to 1,091,381.40, 1,636,672.98 and 417,129.30

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Solution

The fourth proportional to 1,091,381.40, 1,636,672.98 and 417,129.30 is: 625,541.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,091,381.40 : 1,636,672.98 = 417,129.30 : x
  2. Step 2: Convert to fraction form
    1,091,381.40/1,636,672.98 = 417,129.30/x
  3. Step 3: Cross multiply
    1,091,381.40x = 1,636,672.98 × 417,129.30
  4. Step 4: Simplify right side
    1,091,381.40x = 682,704,254,476.31
  5. Step 5: Solve for x
    x = 682,704,254,476.31/1,091,381.40
  6. Step 6: Final answer
    x = 625,541.41

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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.