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Finding the Fourth Proportional to 346,170.40, 477,718.80 and 193,223.20

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Solution

The fourth proportional to 346,170.40, 477,718.80 and 193,223.20 is: 266,650.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,170.40 : 477,718.80 = 193,223.20 : x
  2. Step 2: Convert to fraction form
    346,170.40/477,718.80 = 193,223.20/x
  3. Step 3: Cross multiply
    346,170.40x = 477,718.80 × 193,223.20
  4. Step 4: Simplify right side
    346,170.40x = 92,306,355,236.16
  5. Step 5: Solve for x
    x = 92,306,355,236.16/346,170.40
  6. Step 6: Final answer
    x = 266,650.05

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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.