Home / 818,416.22-1,129,023.20-635,878.94

Finding the Fourth Proportional to 818,416.22, 1,129,023.20 and 635,878.94

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Solution

The fourth proportional to 818,416.22, 1,129,023.20 and 635,878.94 is: 877,209.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    818,416.22 : 1,129,023.20 = 635,878.94 : x
  2. Step 2: Convert to fraction form
    818,416.22/1,129,023.20 = 635,878.94/x
  3. Step 3: Cross multiply
    818,416.22x = 1,129,023.20 × 635,878.94
  4. Step 4: Simplify right side
    818,416.22x = 717,922,071,595.99
  5. Step 5: Solve for x
    x = 717,922,071,595.99/818,416.22
  6. Step 6: Final answer
    x = 877,209.00

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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.