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Finding the Fourth Proportional to 547,870.24, 820,328.64 and 357,860.08

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Solution

The fourth proportional to 547,870.24, 820,328.64 and 357,860.08 is: 535,825.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,870.24 : 820,328.64 = 357,860.08 : x
  2. Step 2: Convert to fraction form
    547,870.24/820,328.64 = 357,860.08/x
  3. Step 3: Cross multiply
    547,870.24x = 820,328.64 × 357,860.08
  4. Step 4: Simplify right side
    547,870.24x = 293,562,872,736.69
  5. Step 5: Solve for x
    x = 293,562,872,736.69/547,870.24
  6. Step 6: Final answer
    x = 535,825.55

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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.