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Finding the Fourth Proportional to 707,287.34, 976,078.54 and 385,018.92

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Solution

The fourth proportional to 707,287.34, 976,078.54 and 385,018.92 is: 531,338.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    707,287.34 : 976,078.54 = 385,018.92 : x
  2. Step 2: Convert to fraction form
    707,287.34/976,078.54 = 385,018.92/x
  3. Step 3: Cross multiply
    707,287.34x = 976,078.54 × 385,018.92
  4. Step 4: Simplify right side
    707,287.34x = 375,808,705,305.98
  5. Step 5: Solve for x
    x = 375,808,705,305.98/707,287.34
  6. Step 6: Final answer
    x = 531,338.09

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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.