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Finding the Fourth Proportional to 848,895, 1,171,641.48 and 486,561.72

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Solution

The fourth proportional to 848,895, 1,171,641.48 and 486,561.72 is: 671,550.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    848,895 : 1,171,641.48 = 486,561.72 : x
  2. Step 2: Convert to fraction form
    848,895/1,171,641.48 = 486,561.72/x
  3. Step 3: Cross multiply
    848,895x = 1,171,641.48 × 486,561.72
  4. Step 4: Simplify right side
    848,895x = 570,075,893,732.15
  5. Step 5: Solve for x
    x = 570,075,893,732.15/848,895
  6. Step 6: Final answer
    x = 671,550.54

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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.