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Finding the Fourth Proportional to 650,710.77, 976,234.43 and 381,066.63

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Solution

The fourth proportional to 650,710.77, 976,234.43 and 381,066.63 is: 571,698.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    650,710.77 : 976,234.43 = 381,066.63 : x
  2. Step 2: Convert to fraction form
    650,710.77/976,234.43 = 381,066.63/x
  3. Step 3: Cross multiply
    650,710.77x = 976,234.43 × 381,066.63
  4. Step 4: Simplify right side
    650,710.77x = 372,010,364,330.07
  5. Step 5: Solve for x
    x = 372,010,364,330.07/650,710.77
  6. Step 6: Final answer
    x = 571,698.49

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Double scale
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Similar ratio
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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.