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Finding the Fourth Proportional to 557,994.51, 768,665.75 and 404,581.95

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Solution

The fourth proportional to 557,994.51, 768,665.75 and 404,581.95 is: 557,332.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,994.51 : 768,665.75 = 404,581.95 : x
  2. Step 2: Convert to fraction form
    557,994.51/768,665.75 = 404,581.95/x
  3. Step 3: Cross multiply
    557,994.51x = 768,665.75 × 404,581.95
  4. Step 4: Simplify right side
    557,994.51x = 310,988,286,010.30
  5. Step 5: Solve for x
    x = 310,988,286,010.30/557,994.51
  6. Step 6: Final answer
    x = 557,332.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.