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Finding the Fourth Proportional to 554,811.84, 766,424.16 and 441,489.60

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Solution

The fourth proportional to 554,811.84, 766,424.16 and 441,489.60 is: 609,879.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,811.84 : 766,424.16 = 441,489.60 : x
  2. Step 2: Convert to fraction form
    554,811.84/766,424.16 = 441,489.60/x
  3. Step 3: Cross multiply
    554,811.84x = 766,424.16 × 441,489.60
  4. Step 4: Simplify right side
    554,811.84x = 338,368,295,828.74
  5. Step 5: Solve for x
    x = 338,368,295,828.74/554,811.84
  6. Step 6: Final answer
    x = 609,879.37

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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.