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Finding the Fourth Proportional to 505,813.39, 758,066.01 and 378,454.39

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Solution

The fourth proportional to 505,813.39, 758,066.01 and 378,454.39 is: 567,192.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,813.39 : 758,066.01 = 378,454.39 : x
  2. Step 2: Convert to fraction form
    505,813.39/758,066.01 = 378,454.39/x
  3. Step 3: Cross multiply
    505,813.39x = 758,066.01 × 378,454.39
  4. Step 4: Simplify right side
    505,813.39x = 286,893,409,394.28
  5. Step 5: Solve for x
    x = 286,893,409,394.28/505,813.39
  6. Step 6: Final answer
    x = 567,192.20

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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.