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Finding the Fourth Proportional to 346,539.94, 478,174.22 and 193,559.28

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Solution

The fourth proportional to 346,539.94, 478,174.22 and 193,559.28 is: 267,083.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,539.94 : 478,174.22 = 193,559.28 : x
  2. Step 2: Convert to fraction form
    346,539.94/478,174.22 = 193,559.28/x
  3. Step 3: Cross multiply
    346,539.94x = 478,174.22 × 193,559.28
  4. Step 4: Simplify right side
    346,539.94x = 92,555,057,737.76
  5. Step 5: Solve for x
    x = 92,555,057,737.76/346,539.94
  6. Step 6: Final answer
    x = 267,083.38

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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.