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Finding the Fourth Proportional to 341,458.40, 512,187.60 and 192,159.20

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Solution

The fourth proportional to 341,458.40, 512,187.60 and 192,159.20 is: 288,238.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    341,458.40 : 512,187.60 = 192,159.20 : x
  2. Step 2: Convert to fraction form
    341,458.40/512,187.60 = 192,159.20/x
  3. Step 3: Cross multiply
    341,458.40x = 512,187.60 × 192,159.20
  4. Step 4: Simplify right side
    341,458.40x = 98,421,559,465.92
  5. Step 5: Solve for x
    x = 98,421,559,465.92/341,458.40
  6. Step 6: Final answer
    x = 288,238.80

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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.