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Finding the Fourth Proportional to 707,554.32, 976,412.31 and 385,258.56

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Solution

The fourth proportional to 707,554.32, 976,412.31 and 385,258.56 is: 531,649.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    707,554.32 : 976,412.31 = 385,258.56 : x
  2. Step 2: Convert to fraction form
    707,554.32/976,412.31 = 385,258.56/x
  3. Step 3: Cross multiply
    707,554.32x = 976,412.31 × 385,258.56
  4. Step 4: Simplify right side
    707,554.32x = 376,171,200,516.87
  5. Step 5: Solve for x
    x = 376,171,200,516.87/707,554.32
  6. Step 6: Final answer
    x = 531,649.92

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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.