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Finding the Fourth Proportional to 626,879.25, 865,093.38 and 358,607.25

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Solution

The fourth proportional to 626,879.25, 865,093.38 and 358,607.25 is: 494,878.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,879.25 : 865,093.38 = 358,607.25 : x
  2. Step 2: Convert to fraction form
    626,879.25/865,093.38 = 358,607.25/x
  3. Step 3: Cross multiply
    626,879.25x = 865,093.38 × 358,607.25
  4. Step 4: Simplify right side
    626,879.25x = 310,228,757,995.01
  5. Step 5: Solve for x
    x = 310,228,757,995.01/626,879.25
  6. Step 6: Final answer
    x = 494,878.01

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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.