Home / 876,808.21-1,209,651.06-509,222.77

Finding the Fourth Proportional to 876,808.21, 1,209,651.06 and 509,222.77

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Solution

The fourth proportional to 876,808.21, 1,209,651.06 and 509,222.77 is: 702,527.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    876,808.21 : 1,209,651.06 = 509,222.77 : x
  2. Step 2: Convert to fraction form
    876,808.21/1,209,651.06 = 509,222.77/x
  3. Step 3: Cross multiply
    876,808.21x = 1,209,651.06 × 509,222.77
  4. Step 4: Simplify right side
    876,808.21x = 615,981,860,960.52
  5. Step 5: Solve for x
    x = 615,981,860,960.52/876,808.21
  6. Step 6: Final answer
    x = 702,527.48

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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.