Home / 1,161,784.30-1,603,306.57-645,576.52

Finding the Fourth Proportional to 1,161,784.30, 1,603,306.57 and 645,576.52

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Solution

The fourth proportional to 1,161,784.30, 1,603,306.57 and 645,576.52 is: 890,920.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,161,784.30 : 1,603,306.57 = 645,576.52 : x
  2. Step 2: Convert to fraction form
    1,161,784.30/1,603,306.57 = 645,576.52/x
  3. Step 3: Cross multiply
    1,161,784.30x = 1,603,306.57 × 645,576.52
  4. Step 4: Simplify right side
    1,161,784.30x = 1,035,057,075,953.74
  5. Step 5: Solve for x
    x = 1,035,057,075,953.74/1,161,784.30
  6. Step 6: Final answer
    x = 890,920.18

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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.