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Finding the Fourth Proportional to 346,630.31, 478,302.22 and 193,649.51

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Solution

The fourth proportional to 346,630.31, 478,302.22 and 193,649.51 is: 267,209.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,630.31 : 478,302.22 = 193,649.51 : x
  2. Step 2: Convert to fraction form
    346,630.31/478,302.22 = 193,649.51/x
  3. Step 3: Cross multiply
    346,630.31x = 478,302.22 × 193,649.51
  4. Step 4: Simplify right side
    346,630.31x = 92,622,989,538.23
  5. Step 5: Solve for x
    x = 92,622,989,538.23/346,630.31
  6. Step 6: Final answer
    x = 267,209.72

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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.