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Finding the Fourth Proportional to 611,200.39, 843,415.54 and 369,616.17

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Solution

The fourth proportional to 611,200.39, 843,415.54 and 369,616.17 is: 510,045.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,200.39 : 843,415.54 = 369,616.17 : x
  2. Step 2: Convert to fraction form
    611,200.39/843,415.54 = 369,616.17/x
  3. Step 3: Cross multiply
    611,200.39x = 843,415.54 × 369,616.17
  4. Step 4: Simplify right side
    611,200.39x = 311,740,021,613.28
  5. Step 5: Solve for x
    x = 311,740,021,613.28/611,200.39
  6. Step 6: Final answer
    x = 510,045.52

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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.