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Finding the Fourth Proportional to 528,899.60, 793,422.30 and 191,858.60

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Solution

The fourth proportional to 528,899.60, 793,422.30 and 191,858.60 is: 287,814.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,899.60 : 793,422.30 = 191,858.60 : x
  2. Step 2: Convert to fraction form
    528,899.60/793,422.30 = 191,858.60/x
  3. Step 3: Cross multiply
    528,899.60x = 793,422.30 × 191,858.60
  4. Step 4: Simplify right side
    528,899.60x = 152,224,891,686.78
  5. Step 5: Solve for x
    x = 152,224,891,686.78/528,899.60
  6. Step 6: Final answer
    x = 287,814.34

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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.