Home / 912,808.88-1,259,684.16-510,400.88

Finding the Fourth Proportional to 912,808.88, 1,259,684.16 and 510,400.88

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Solution

The fourth proportional to 912,808.88, 1,259,684.16 and 510,400.88 is: 704,357.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    912,808.88 : 1,259,684.16 = 510,400.88 : x
  2. Step 2: Convert to fraction form
    912,808.88/1,259,684.16 = 510,400.88/x
  3. Step 3: Cross multiply
    912,808.88x = 1,259,684.16 × 510,400.88
  4. Step 4: Simplify right side
    912,808.88x = 642,943,903,786.06
  5. Step 5: Solve for x
    x = 642,943,903,786.06/912,808.88
  6. Step 6: Final answer
    x = 704,357.63

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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.