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Finding the Fourth Proportional to 478,947.90, 660,952.72 and 264,095.58

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Solution

The fourth proportional to 478,947.90, 660,952.72 and 264,095.58 is: 364,454.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,947.90 : 660,952.72 = 264,095.58 : x
  2. Step 2: Convert to fraction form
    478,947.90/660,952.72 = 264,095.58/x
  3. Step 3: Cross multiply
    478,947.90x = 660,952.72 × 264,095.58
  4. Step 4: Simplify right side
    478,947.90x = 174,554,691,940.98
  5. Step 5: Solve for x
    x = 174,554,691,940.98/478,947.90
  6. Step 6: Final answer
    x = 364,454.45

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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.