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Finding the Fourth Proportional to 1,182,307.04, 1,631,583.88 and 645,763.04

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Solution

The fourth proportional to 1,182,307.04, 1,631,583.88 and 645,763.04 is: 891,153.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,182,307.04 : 1,631,583.88 = 645,763.04 : x
  2. Step 2: Convert to fraction form
    1,182,307.04/1,631,583.88 = 645,763.04/x
  3. Step 3: Cross multiply
    1,182,307.04x = 1,631,583.88 × 645,763.04
  4. Step 4: Simplify right side
    1,182,307.04x = 1,053,616,566,363.80
  5. Step 5: Solve for x
    x = 1,053,616,566,363.80/1,182,307.04
  6. Step 6: Final answer
    x = 891,153.09

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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.