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Finding the Fourth Proportional to 611,784.96, 844,398.08 and 339,946.08

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Solution

The fourth proportional to 611,784.96, 844,398.08 and 339,946.08 is: 469,200.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,784.96 : 844,398.08 = 339,946.08 : x
  2. Step 2: Convert to fraction form
    611,784.96/844,398.08 = 339,946.08/x
  3. Step 3: Cross multiply
    611,784.96x = 844,398.08 × 339,946.08
  4. Step 4: Simplify right side
    611,784.96x = 287,049,817,255.53
  5. Step 5: Solve for x
    x = 287,049,817,255.53/611,784.96
  6. Step 6: Final answer
    x = 469,200.51

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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.