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Finding the Fourth Proportional to 411,859.83, 568,434.59 and 282,692.19

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Solution

The fourth proportional to 411,859.83, 568,434.59 and 282,692.19 is: 390,161.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    411,859.83 : 568,434.59 = 282,692.19 : x
  2. Step 2: Convert to fraction form
    411,859.83/568,434.59 = 282,692.19/x
  3. Step 3: Cross multiply
    411,859.83x = 568,434.59 × 282,692.19
  4. Step 4: Simplify right side
    411,859.83x = 160,692,017,705.39
  5. Step 5: Solve for x
    x = 160,692,017,705.39/411,859.83
  6. Step 6: Final answer
    x = 390,161.91

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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.