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Finding the Fourth Proportional to 786,372.80, 1,085,559.80 and 592,858.82

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Solution

The fourth proportional to 786,372.80, 1,085,559.80 and 592,858.82 is: 818,420.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    786,372.80 : 1,085,559.80 = 592,858.82 : x
  2. Step 2: Convert to fraction form
    786,372.80/1,085,559.80 = 592,858.82/x
  3. Step 3: Cross multiply
    786,372.80x = 1,085,559.80 × 592,858.82
  4. Step 4: Simplify right side
    786,372.80x = 643,583,702,067.44
  5. Step 5: Solve for x
    x = 643,583,702,067.44/786,372.80
  6. Step 6: Final answer
    x = 818,420.60

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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.