Home / 283,300.79-391,306.16-205,652.51

Finding the Fourth Proportional to 283,300.79, 391,306.16 and 205,652.51

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Solution

The fourth proportional to 283,300.79, 391,306.16 and 205,652.51 is: 284,055.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,300.79 : 391,306.16 = 205,652.51 : x
  2. Step 2: Convert to fraction form
    283,300.79/391,306.16 = 205,652.51/x
  3. Step 3: Cross multiply
    283,300.79x = 391,306.16 × 205,652.51
  4. Step 4: Simplify right side
    283,300.79x = 80,473,090,997.67
  5. Step 5: Solve for x
    x = 80,473,090,997.67/283,300.79
  6. Step 6: Final answer
    x = 284,055.31

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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.