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Finding the Fourth Proportional to 655,271.24, 904,176.78 and 368,774.24

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Solution

The fourth proportional to 655,271.24, 904,176.78 and 368,774.24 is: 508,853.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    655,271.24 : 904,176.78 = 368,774.24 : x
  2. Step 2: Convert to fraction form
    655,271.24/904,176.78 = 368,774.24/x
  3. Step 3: Cross multiply
    655,271.24x = 904,176.78 × 368,774.24
  4. Step 4: Simplify right side
    655,271.24x = 333,437,104,870.15
  5. Step 5: Solve for x
    x = 333,437,104,870.15/655,271.24
  6. Step 6: Final answer
    x = 508,853.56

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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.