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Finding the Fourth Proportional to 1,391,843, 2,087,764.50 and 341,219

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Solution

The fourth proportional to 1,391,843, 2,087,764.50 and 341,219 is: 511,828.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,391,843 : 2,087,764.50 = 341,219 : x
  2. Step 2: Convert to fraction form
    1,391,843/2,087,764.50 = 341,219/x
  3. Step 3: Cross multiply
    1,391,843x = 2,087,764.50 × 341,219
  4. Step 4: Simplify right side
    1,391,843x = 712,384,914,925.50
  5. Step 5: Solve for x
    x = 712,384,914,925.50/1,391,843
  6. Step 6: Final answer
    x = 511,828.50

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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.