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Finding the Fourth Proportional to 341,219.40, 511,829.10 and 91,901.40

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Solution

The fourth proportional to 341,219.40, 511,829.10 and 91,901.40 is: 137,852.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    341,219.40 : 511,829.10 = 91,901.40 : x
  2. Step 2: Convert to fraction form
    341,219.40/511,829.10 = 91,901.40/x
  3. Step 3: Cross multiply
    341,219.40x = 511,829.10 × 91,901.40
  4. Step 4: Simplify right side
    341,219.40x = 47,037,810,850.74
  5. Step 5: Solve for x
    x = 47,037,810,850.74/341,219.40
  6. Step 6: Final answer
    x = 137,852.10

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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.