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Finding the Fourth Proportional to 602,681.28, 832,260.33 and 388,190.04

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Solution

The fourth proportional to 602,681.28, 832,260.33 and 388,190.04 is: 536,063.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    602,681.28 : 832,260.33 = 388,190.04 : x
  2. Step 2: Convert to fraction form
    602,681.28/832,260.33 = 388,190.04/x
  3. Step 3: Cross multiply
    602,681.28x = 832,260.33 × 388,190.04
  4. Step 4: Simplify right side
    602,681.28x = 323,075,170,793.11
  5. Step 5: Solve for x
    x = 323,075,170,793.11/602,681.28
  6. Step 6: Final answer
    x = 536,063.06

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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.