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Finding the Fourth Proportional to 1,190,778, 1,643,299.56 and 654,234

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Solution

The fourth proportional to 1,190,778, 1,643,299.56 and 654,234 is: 902,857.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,190,778 : 1,643,299.56 = 654,234 : x
  2. Step 2: Convert to fraction form
    1,190,778/1,643,299.56 = 654,234/x
  3. Step 3: Cross multiply
    1,190,778x = 1,643,299.56 × 654,234
  4. Step 4: Simplify right side
    1,190,778x = 1,075,102,444,337.04
  5. Step 5: Solve for x
    x = 1,075,102,444,337.04/1,190,778
  6. Step 6: Final answer
    x = 902,857.16

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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.