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Finding the Fourth Proportional to 707,016.96, 975,663.78 and 384,719.58

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Solution

The fourth proportional to 707,016.96, 975,663.78 and 384,719.58 is: 530,902.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    707,016.96 : 975,663.78 = 384,719.58 : x
  2. Step 2: Convert to fraction form
    707,016.96/975,663.78 = 384,719.58/x
  3. Step 3: Cross multiply
    707,016.96x = 975,663.78 × 384,719.58
  4. Step 4: Simplify right side
    707,016.96x = 375,356,959,662.81
  5. Step 5: Solve for x
    x = 375,356,959,662.81/707,016.96
  6. Step 6: Final answer
    x = 530,902.34

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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.