Home / 769,284.81-1,153,426.50-256,886.91

Finding the Fourth Proportional to 769,284.81, 1,153,426.50 and 256,886.91

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Solution

The fourth proportional to 769,284.81, 1,153,426.50 and 256,886.91 is: 385,163.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    769,284.81 : 1,153,426.50 = 256,886.91 : x
  2. Step 2: Convert to fraction form
    769,284.81/1,153,426.50 = 256,886.91/x
  3. Step 3: Cross multiply
    769,284.81x = 1,153,426.50 × 256,886.91
  4. Step 4: Simplify right side
    769,284.81x = 296,300,169,497.12
  5. Step 5: Solve for x
    x = 296,300,169,497.12/769,284.81
  6. Step 6: Final answer
    x = 385,163.16

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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.