Home / 905,757.60-1,249,626.68-543,298.80

Finding the Fourth Proportional to 905,757.60, 1,249,626.68 and 543,298.80

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Solution

The fourth proportional to 905,757.60, 1,249,626.68 and 543,298.80 is: 749,561.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    905,757.60 : 1,249,626.68 = 543,298.80 : x
  2. Step 2: Convert to fraction form
    905,757.60/1,249,626.68 = 543,298.80/x
  3. Step 3: Cross multiply
    905,757.60x = 1,249,626.68 × 543,298.80
  4. Step 4: Simplify right side
    905,757.60x = 678,920,675,691.98
  5. Step 5: Solve for x
    x = 678,920,675,691.98/905,757.60
  6. Step 6: Final answer
    x = 749,561.11

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1.5x scale

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.