Home / 806,814.30-1,210,221.45-768,107.10

Finding the Fourth Proportional to 806,814.30, 1,210,221.45 and 768,107.10

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Solution

The fourth proportional to 806,814.30, 1,210,221.45 and 768,107.10 is: 1,152,160.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    806,814.30 : 1,210,221.45 = 768,107.10 : x
  2. Step 2: Convert to fraction form
    806,814.30/1,210,221.45 = 768,107.10/x
  3. Step 3: Cross multiply
    806,814.30x = 1,210,221.45 × 768,107.10
  4. Step 4: Simplify right side
    806,814.30x = 929,579,688,317.30
  5. Step 5: Solve for x
    x = 929,579,688,317.30/806,814.30
  6. Step 6: Final answer
    x = 1,152,160.65

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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.