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Finding the Fourth Proportional to 346,345.20, 519,663.60 and 188,686.80

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Solution

The fourth proportional to 346,345.20, 519,663.60 and 188,686.80 is: 283,109.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,345.20 : 519,663.60 = 188,686.80 : x
  2. Step 2: Convert to fraction form
    346,345.20/519,663.60 = 188,686.80/x
  3. Step 3: Cross multiply
    346,345.20x = 519,663.60 × 188,686.80
  4. Step 4: Simplify right side
    346,345.20x = 98,053,661,760.48
  5. Step 5: Solve for x
    x = 98,053,661,760.48/346,345.20
  6. Step 6: Final answer
    x = 283,109.63

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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.