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Finding the Fourth Proportional to 519,715.80, 779,184.90 and 283,325.40

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Solution

The fourth proportional to 519,715.80, 779,184.90 and 283,325.40 is: 424,776.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,715.80 : 779,184.90 = 283,325.40 : x
  2. Step 2: Convert to fraction form
    519,715.80/779,184.90 = 283,325.40/x
  3. Step 3: Cross multiply
    519,715.80x = 779,184.90 × 283,325.40
  4. Step 4: Simplify right side
    519,715.80x = 220,762,873,466.46
  5. Step 5: Solve for x
    x = 220,762,873,466.46/519,715.80
  6. Step 6: Final answer
    x = 424,776.14

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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.