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Finding the Fourth Proportional to 478,866.16, 660,805.08 and 263,994.16

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Solution

The fourth proportional to 478,866.16, 660,805.08 and 263,994.16 is: 364,295.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,866.16 : 660,805.08 = 263,994.16 : x
  2. Step 2: Convert to fraction form
    478,866.16/660,805.08 = 263,994.16/x
  3. Step 3: Cross multiply
    478,866.16x = 660,805.08 × 263,994.16
  4. Step 4: Simplify right side
    478,866.16x = 174,448,682,018.33
  5. Step 5: Solve for x
    x = 174,448,682,018.33/478,866.16
  6. Step 6: Final answer
    x = 364,295.28

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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.