Home / 811,312.79-1,119,513.33-448,687.26

Finding the Fourth Proportional to 811,312.79, 1,119,513.33 and 448,687.26

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Solution

The fourth proportional to 811,312.79, 1,119,513.33 and 448,687.26 is: 619,134.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    811,312.79 : 1,119,513.33 = 448,687.26 : x
  2. Step 2: Convert to fraction form
    811,312.79/1,119,513.33 = 448,687.26/x
  3. Step 3: Cross multiply
    811,312.79x = 1,119,513.33 × 448,687.26
  4. Step 4: Simplify right side
    811,312.79x = 502,311,368,571.18
  5. Step 5: Solve for x
    x = 502,311,368,571.18/811,312.79
  6. Step 6: Final answer
    x = 619,134.05

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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.