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Finding the Fourth Proportional to 343,899.60, 515,849.40 and 341,931.30

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Solution

The fourth proportional to 343,899.60, 515,849.40 and 341,931.30 is: 512,896.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,899.60 : 515,849.40 = 341,931.30 : x
  2. Step 2: Convert to fraction form
    343,899.60/515,849.40 = 341,931.30/x
  3. Step 3: Cross multiply
    343,899.60x = 515,849.40 × 341,931.30
  4. Step 4: Simplify right side
    343,899.60x = 176,385,055,946.22
  5. Step 5: Solve for x
    x = 176,385,055,946.22/343,899.60
  6. Step 6: Final answer
    x = 512,896.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.