Home / 772,811.60-1,159,217.40-393,731.60

Finding the Fourth Proportional to 772,811.60, 1,159,217.40 and 393,731.60

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Solution

The fourth proportional to 772,811.60, 1,159,217.40 and 393,731.60 is: 590,597.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    772,811.60 : 1,159,217.40 = 393,731.60 : x
  2. Step 2: Convert to fraction form
    772,811.60/1,159,217.40 = 393,731.60/x
  3. Step 3: Cross multiply
    772,811.60x = 1,159,217.40 × 393,731.60
  4. Step 4: Simplify right side
    772,811.60x = 456,420,521,649.84
  5. Step 5: Solve for x
    x = 456,420,521,649.84/772,811.60
  6. Step 6: Final answer
    x = 590,597.40

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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.