Home / 1,115,401.64-1,539,238.76-618,670.38

Finding the Fourth Proportional to 1,115,401.64, 1,539,238.76 and 618,670.38

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Solution

The fourth proportional to 1,115,401.64, 1,539,238.76 and 618,670.38 is: 853,756.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,115,401.64 : 1,539,238.76 = 618,670.38 : x
  2. Step 2: Convert to fraction form
    1,115,401.64/1,539,238.76 = 618,670.38/x
  3. Step 3: Cross multiply
    1,115,401.64x = 1,539,238.76 × 618,670.38
  4. Step 4: Simplify right side
    1,115,401.64x = 952,281,417,770.38
  5. Step 5: Solve for x
    x = 952,281,417,770.38/1,115,401.64
  6. Step 6: Final answer
    x = 853,756.52

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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.