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Finding the Fourth Proportional to 346,508.80, 519,374.40 and 196,820.80

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Solution

The fourth proportional to 346,508.80, 519,374.40 and 196,820.80 is: 295,010.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,508.80 : 519,374.40 = 196,820.80 : x
  2. Step 2: Convert to fraction form
    346,508.80/519,374.40 = 196,820.80/x
  3. Step 3: Cross multiply
    346,508.80x = 519,374.40 × 196,820.80
  4. Step 4: Simplify right side
    346,508.80x = 102,223,684,907.52
  5. Step 5: Solve for x
    x = 102,223,684,907.52/346,508.80
  6. Step 6: Final answer
    x = 295,010.36

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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.