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Finding the Fourth Proportional to 556,427.04, 834,359.90 and 396,411.54

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Solution

The fourth proportional to 556,427.04, 834,359.90 and 396,411.54 is: 594,417.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,427.04 : 834,359.90 = 396,411.54 : x
  2. Step 2: Convert to fraction form
    556,427.04/834,359.90 = 396,411.54/x
  3. Step 3: Cross multiply
    556,427.04x = 834,359.90 × 396,411.54
  4. Step 4: Simplify right side
    556,427.04x = 330,749,892,873.25
  5. Step 5: Solve for x
    x = 330,749,892,873.25/556,427.04
  6. Step 6: Final answer
    x = 594,417.36

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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.