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Finding the Fourth Proportional to 528,897.60, 793,419.30 and 191,856.60

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Solution

The fourth proportional to 528,897.60, 793,419.30 and 191,856.60 is: 287,811.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,897.60 : 793,419.30 = 191,856.60 : x
  2. Step 2: Convert to fraction form
    528,897.60/793,419.30 = 191,856.60/x
  3. Step 3: Cross multiply
    528,897.60x = 793,419.30 × 191,856.60
  4. Step 4: Simplify right side
    528,897.60x = 152,222,729,272.38
  5. Step 5: Solve for x
    x = 152,222,729,272.38/528,897.60
  6. Step 6: Final answer
    x = 287,811.34

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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.