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Finding the Fourth Proportional to 528,860.64, 793,347.31 and 168,905.71

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Solution

The fourth proportional to 528,860.64, 793,347.31 and 168,905.71 is: 253,376.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,860.64 : 793,347.31 = 168,905.71 : x
  2. Step 2: Convert to fraction form
    528,860.64/793,347.31 = 168,905.71/x
  3. Step 3: Cross multiply
    528,860.64x = 793,347.31 × 168,905.71
  4. Step 4: Simplify right side
    528,860.64x = 134,000,887,412.38
  5. Step 5: Solve for x
    x = 134,000,887,412.38/528,860.64
  6. Step 6: Final answer
    x = 253,376.55

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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.