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Finding the Fourth Proportional to 570,356.73, 855,239.85 and 304,045.74

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Solution

The fourth proportional to 570,356.73, 855,239.85 and 304,045.74 is: 455,911.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,356.73 : 855,239.85 = 304,045.74 : x
  2. Step 2: Convert to fraction form
    570,356.73/855,239.85 = 304,045.74/x
  3. Step 3: Cross multiply
    570,356.73x = 855,239.85 × 304,045.74
  4. Step 4: Simplify right side
    570,356.73x = 260,032,033,070.74
  5. Step 5: Solve for x
    x = 260,032,033,070.74/570,356.73
  6. Step 6: Final answer
    x = 455,911.22

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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.