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Finding the Fourth Proportional to 611,460.95, 843,840.38 and 353,329.34

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Solution

The fourth proportional to 611,460.95, 843,840.38 and 353,329.34 is: 487,608.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,460.95 : 843,840.38 = 353,329.34 : x
  2. Step 2: Convert to fraction form
    611,460.95/843,840.38 = 353,329.34/x
  3. Step 3: Cross multiply
    611,460.95x = 843,840.38 × 353,329.34
  4. Step 4: Simplify right side
    611,460.95x = 298,153,561,194.87
  5. Step 5: Solve for x
    x = 298,153,561,194.87/611,460.95
  6. Step 6: Final answer
    x = 487,608.51

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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.