Home / 818,645.22-1,225,700.64-418,424.22

Finding the Fourth Proportional to 818,645.22, 1,225,700.64 and 418,424.22

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Solution

The fourth proportional to 818,645.22, 1,225,700.64 and 418,424.22 is: 626,477.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    818,645.22 : 1,225,700.64 = 418,424.22 : x
  2. Step 2: Convert to fraction form
    818,645.22/1,225,700.64 = 418,424.22/x
  3. Step 3: Cross multiply
    818,645.22x = 1,225,700.64 × 418,424.22
  4. Step 4: Simplify right side
    818,645.22x = 512,862,834,245.50
  5. Step 5: Solve for x
    x = 512,862,834,245.50/818,645.22
  6. Step 6: Final answer
    x = 626,477.53

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1.5x scale

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.