Home / 864,075.68-1,296,323.86-287,697.44

Finding the Fourth Proportional to 864,075.68, 1,296,323.86 and 287,697.44

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Solution

The fourth proportional to 864,075.68, 1,296,323.86 and 287,697.44 is: 431,616.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    864,075.68 : 1,296,323.86 = 287,697.44 : x
  2. Step 2: Convert to fraction form
    864,075.68/1,296,323.86 = 287,697.44/x
  3. Step 3: Cross multiply
    864,075.68x = 1,296,323.86 × 287,697.44
  4. Step 4: Simplify right side
    864,075.68x = 372,949,055,932.92
  5. Step 5: Solve for x
    x = 372,949,055,932.92/864,075.68
  6. Step 6: Final answer
    x = 431,616.19

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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.