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Finding the Fourth Proportional to 346,316.20, 519,620.10 and 188,657.80

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Solution

The fourth proportional to 346,316.20, 519,620.10 and 188,657.80 is: 283,066.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,316.20 : 519,620.10 = 188,657.80 : x
  2. Step 2: Convert to fraction form
    346,316.20/519,620.10 = 188,657.80/x
  3. Step 3: Cross multiply
    346,316.20x = 519,620.10 × 188,657.80
  4. Step 4: Simplify right side
    346,316.20x = 98,030,384,901.78
  5. Step 5: Solve for x
    x = 98,030,384,901.78/346,316.20
  6. Step 6: Final answer
    x = 283,066.13

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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.