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Finding the Fourth Proportional to 501,590.52, 692,129.88 and 286,744.68

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Solution

The fourth proportional to 501,590.52, 692,129.88 and 286,744.68 is: 395,670.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    501,590.52 : 692,129.88 = 286,744.68 : x
  2. Step 2: Convert to fraction form
    501,590.52/692,129.88 = 286,744.68/x
  3. Step 3: Cross multiply
    501,590.52x = 692,129.88 × 286,744.68
  4. Step 4: Simplify right side
    501,590.52x = 198,464,560,959.04
  5. Step 5: Solve for x
    x = 198,464,560,959.04/501,590.52
  6. Step 6: Final answer
    x = 395,670.48

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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.