Home / 828,722.56-1,143,588.72-461,189.92

Finding the Fourth Proportional to 828,722.56, 1,143,588.72 and 461,189.92

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Solution

The fourth proportional to 828,722.56, 1,143,588.72 and 461,189.92 is: 636,415.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    828,722.56 : 1,143,588.72 = 461,189.92 : x
  2. Step 2: Convert to fraction form
    828,722.56/1,143,588.72 = 461,189.92/x
  3. Step 3: Cross multiply
    828,722.56x = 1,143,588.72 × 461,189.92
  4. Step 4: Simplify right side
    828,722.56x = 527,411,590,289.70
  5. Step 5: Solve for x
    x = 527,411,590,289.70/828,722.56
  6. Step 6: Final answer
    x = 636,415.15

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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.