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Finding the Fourth Proportional to 423,536.40, 635,567.76 and 263,925.60

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Solution

The fourth proportional to 423,536.40, 635,567.76 and 263,925.60 is: 396,052.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,536.40 : 635,567.76 = 263,925.60 : x
  2. Step 2: Convert to fraction form
    423,536.40/635,567.76 = 263,925.60/x
  3. Step 3: Cross multiply
    423,536.40x = 635,567.76 × 263,925.60
  4. Step 4: Simplify right side
    423,536.40x = 167,742,602,398.66
  5. Step 5: Solve for x
    x = 167,742,602,398.66/423,536.40
  6. Step 6: Final answer
    x = 396,052.39

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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.