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Finding the Fourth Proportional to 1,934,673.84, 2,902,075.80 and 869,719.44

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Solution

The fourth proportional to 1,934,673.84, 2,902,075.80 and 869,719.44 is: 1,304,608.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,934,673.84 : 2,902,075.80 = 869,719.44 : x
  2. Step 2: Convert to fraction form
    1,934,673.84/2,902,075.80 = 869,719.44/x
  3. Step 3: Cross multiply
    1,934,673.84x = 2,902,075.80 × 869,719.44
  4. Step 4: Simplify right side
    1,934,673.84x = 2,523,991,739,613.55
  5. Step 5: Solve for x
    x = 2,523,991,739,613.55/1,934,673.84
  6. Step 6: Final answer
    x = 1,304,608.40

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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.