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Finding the Fourth Proportional to 989,562, 1,365,598.20 and 536,853

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Solution

The fourth proportional to 989,562, 1,365,598.20 and 536,853 is: 740,858.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    989,562 : 1,365,598.20 = 536,853 : x
  2. Step 2: Convert to fraction form
    989,562/1,365,598.20 = 536,853/x
  3. Step 3: Cross multiply
    989,562x = 1,365,598.20 × 536,853
  4. Step 4: Simplify right side
    989,562x = 733,125,490,464.60
  5. Step 5: Solve for x
    x = 733,125,490,464.60/989,562
  6. Step 6: Final answer
    x = 740,858.57

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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.