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Finding the Fourth Proportional to 341,390.40, 511,101.45 and 341,390.40

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Solution

The fourth proportional to 341,390.40, 511,101.45 and 341,390.40 is: 511,101.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    341,390.40 : 511,101.45 = 341,390.40 : x
  2. Step 2: Convert to fraction form
    341,390.40/511,101.45 = 341,390.40/x
  3. Step 3: Cross multiply
    341,390.40x = 511,101.45 × 341,390.40
  4. Step 4: Simplify right side
    341,390.40x = 174,485,128,456.08
  5. Step 5: Solve for x
    x = 174,485,128,456.08/341,390.40
  6. Step 6: Final answer
    x = 511,101.45

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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.