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Finding the Fourth Proportional to 610,806.16, 916,267.56 and 189,969.04

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Solution

The fourth proportional to 610,806.16, 916,267.56 and 189,969.04 is: 284,971.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    610,806.16 : 916,267.56 = 189,969.04 : x
  2. Step 2: Convert to fraction form
    610,806.16/916,267.56 = 189,969.04/x
  3. Step 3: Cross multiply
    610,806.16x = 916,267.56 × 189,969.04
  4. Step 4: Simplify right side
    610,806.16x = 174,062,468,756.34
  5. Step 5: Solve for x
    x = 174,062,468,756.34/610,806.16
  6. Step 6: Final answer
    x = 284,971.70

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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.