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Finding the Fourth Proportional to 742,994.76, 1,025,345.52 and 403,463

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Solution

The fourth proportional to 742,994.76, 1,025,345.52 and 403,463 is: 556,785.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    742,994.76 : 1,025,345.52 = 403,463 : x
  2. Step 2: Convert to fraction form
    742,994.76/1,025,345.52 = 403,463/x
  3. Step 3: Cross multiply
    742,994.76x = 1,025,345.52 × 403,463
  4. Step 4: Simplify right side
    742,994.76x = 413,688,979,535.76
  5. Step 5: Solve for x
    x = 413,688,979,535.76/742,994.76
  6. Step 6: Final answer
    x = 556,785.86

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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.