Home / 805,487.82-1,111,296.54-499,454.02

Finding the Fourth Proportional to 805,487.82, 1,111,296.54 and 499,454.02

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Solution

The fourth proportional to 805,487.82, 1,111,296.54 and 499,454.02 is: 689,075.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,487.82 : 1,111,296.54 = 499,454.02 : x
  2. Step 2: Convert to fraction form
    805,487.82/1,111,296.54 = 499,454.02/x
  3. Step 3: Cross multiply
    805,487.82x = 1,111,296.54 × 499,454.02
  4. Step 4: Simplify right side
    805,487.82x = 555,041,524,315.09
  5. Step 5: Solve for x
    x = 555,041,524,315.09/805,487.82
  6. Step 6: Final answer
    x = 689,075.01

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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.