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Finding the Fourth Proportional to 536,155.20, 803,007.54 and 255,869.28

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Solution

The fourth proportional to 536,155.20, 803,007.54 and 255,869.28 is: 383,219.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    536,155.20 : 803,007.54 = 255,869.28 : x
  2. Step 2: Convert to fraction form
    536,155.20/803,007.54 = 255,869.28/x
  3. Step 3: Cross multiply
    536,155.20x = 803,007.54 × 255,869.28
  4. Step 4: Simplify right side
    536,155.20x = 205,464,961,094.37
  5. Step 5: Solve for x
    x = 205,464,961,094.37/536,155.20
  6. Step 6: Final answer
    x = 383,219.19

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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.