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Finding the Fourth Proportional to 622,514.40, 933,771.60 and 618,577.80

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Solution

The fourth proportional to 622,514.40, 933,771.60 and 618,577.80 is: 927,866.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    622,514.40 : 933,771.60 = 618,577.80 : x
  2. Step 2: Convert to fraction form
    622,514.40/933,771.60 = 618,577.80/x
  3. Step 3: Cross multiply
    622,514.40x = 933,771.60 × 618,577.80
  4. Step 4: Simplify right side
    622,514.40x = 577,610,382,030.48
  5. Step 5: Solve for x
    x = 577,610,382,030.48/622,514.40
  6. Step 6: Final answer
    x = 927,866.70

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.