Home / 346,518.40-478,190.20-193,558.72

Finding the Fourth Proportional to 346,518.40, 478,190.20 and 193,558.72

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Solution

The fourth proportional to 346,518.40, 478,190.20 and 193,558.72 is: 267,108.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,518.40 : 478,190.20 = 193,558.72 : x
  2. Step 2: Convert to fraction form
    346,518.40/478,190.20 = 193,558.72/x
  3. Step 3: Cross multiply
    346,518.40x = 478,190.20 × 193,558.72
  4. Step 4: Simplify right side
    346,518.40x = 92,557,883,028.54
  5. Step 5: Solve for x
    x = 92,557,883,028.54/346,518.40
  6. Step 6: Final answer
    x = 267,108.13

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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.