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Finding the Fourth Proportional to 1,190,781, 1,643,303.70 and 654,237

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Solution

The fourth proportional to 1,190,781, 1,643,303.70 and 654,237 is: 902,861.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,190,781 : 1,643,303.70 = 654,237 : x
  2. Step 2: Convert to fraction form
    1,190,781/1,643,303.70 = 654,237/x
  3. Step 3: Cross multiply
    1,190,781x = 1,643,303.70 × 654,237
  4. Step 4: Simplify right side
    1,190,781x = 1,075,110,082,776.90
  5. Step 5: Solve for x
    x = 1,075,110,082,776.90/1,190,781
  6. Step 6: Final answer
    x = 902,861.30

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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.