Home / 657,869.45-986,493.13-302,778.41

Finding the Fourth Proportional to 657,869.45, 986,493.13 and 302,778.41

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Solution

The fourth proportional to 657,869.45, 986,493.13 and 302,778.41 is: 454,024.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,869.45 : 986,493.13 = 302,778.41 : x
  2. Step 2: Convert to fraction form
    657,869.45/986,493.13 = 302,778.41/x
  3. Step 3: Cross multiply
    657,869.45x = 986,493.13 × 302,778.41
  4. Step 4: Simplify right side
    657,869.45x = 298,688,815,687.91
  5. Step 5: Solve for x
    x = 298,688,815,687.91/657,869.45
  6. Step 6: Final answer
    x = 454,024.45

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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.