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Finding the Fourth Proportional to 1,190,792, 1,643,318.88 and 654,248

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Solution

The fourth proportional to 1,190,792, 1,643,318.88 and 654,248 is: 902,876.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,190,792 : 1,643,318.88 = 654,248 : x
  2. Step 2: Convert to fraction form
    1,190,792/1,643,318.88 = 654,248/x
  3. Step 3: Cross multiply
    1,190,792x = 1,643,318.88 × 654,248
  4. Step 4: Simplify right side
    1,190,792x = 1,075,138,090,602.24
  5. Step 5: Solve for x
    x = 1,075,138,090,602.24/1,190,792
  6. Step 6: Final answer
    x = 902,876.48

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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.