Home / 1,115,401.01-1,539,237.89-618,669.75

Finding the Fourth Proportional to 1,115,401.01, 1,539,237.89 and 618,669.75

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Solution

The fourth proportional to 1,115,401.01, 1,539,237.89 and 618,669.75 is: 853,755.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,115,401.01 : 1,539,237.89 = 618,669.75 : x
  2. Step 2: Convert to fraction form
    1,115,401.01/1,539,237.89 = 618,669.75/x
  3. Step 3: Cross multiply
    1,115,401.01x = 1,539,237.89 × 618,669.75
  4. Step 4: Simplify right side
    1,115,401.01x = 952,279,925,541.50
  5. Step 5: Solve for x
    x = 952,279,925,541.50/1,115,401.01
  6. Step 6: Final answer
    x = 853,755.66

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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.