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Finding the Fourth Proportional to 707,375.81, 976,177.00 and 385,088.15

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Solution

The fourth proportional to 707,375.81, 976,177.00 and 385,088.15 is: 531,420.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    707,375.81 : 976,177.00 = 385,088.15 : x
  2. Step 2: Convert to fraction form
    707,375.81/976,177.00 = 385,088.15/x
  3. Step 3: Cross multiply
    707,375.81x = 976,177.00 × 385,088.15
  4. Step 4: Simplify right side
    707,375.81x = 375,914,197,924.35
  5. Step 5: Solve for x
    x = 375,914,197,924.35/707,375.81
  6. Step 6: Final answer
    x = 531,420.77

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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.