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Finding the Fourth Proportional to 529,060.14, 729,605.66 and 408,009.69

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Solution

The fourth proportional to 529,060.14, 729,605.66 and 408,009.69 is: 562,669.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,060.14 : 729,605.66 = 408,009.69 : x
  2. Step 2: Convert to fraction form
    529,060.14/729,605.66 = 408,009.69/x
  3. Step 3: Cross multiply
    529,060.14x = 729,605.66 × 408,009.69
  4. Step 4: Simplify right side
    529,060.14x = 297,686,179,158.85
  5. Step 5: Solve for x
    x = 297,686,179,158.85/529,060.14
  6. Step 6: Final answer
    x = 562,669.83

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1.5x scale

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.