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Finding the Fourth Proportional to 413,295.31, 619,870.20 and 113,703.58

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Solution

The fourth proportional to 413,295.31, 619,870.20 and 113,703.58 is: 170,535.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    413,295.31 : 619,870.20 = 113,703.58 : x
  2. Step 2: Convert to fraction form
    413,295.31/619,870.20 = 113,703.58/x
  3. Step 3: Cross multiply
    413,295.31x = 619,870.20 × 113,703.58
  4. Step 4: Simplify right side
    413,295.31x = 70,481,460,875.32
  5. Step 5: Solve for x
    x = 70,481,460,875.32/413,295.31
  6. Step 6: Final answer
    x = 170,535.35

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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.