Home / 784,134.70-1,174,626.87-663,674.74

Finding the Fourth Proportional to 784,134.70, 1,174,626.87 and 663,674.74

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Solution

The fourth proportional to 784,134.70, 1,174,626.87 and 663,674.74 is: 994,178.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    784,134.70 : 1,174,626.87 = 663,674.74 : x
  2. Step 2: Convert to fraction form
    784,134.70/1,174,626.87 = 663,674.74/x
  3. Step 3: Cross multiply
    784,134.70x = 1,174,626.87 × 663,674.74
  4. Step 4: Simplify right side
    784,134.70x = 779,570,182,544.26
  5. Step 5: Solve for x
    x = 779,570,182,544.26/784,134.70
  6. Step 6: Final answer
    x = 994,178.91

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1.5x scale

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.