Home / 839,012.72-1,257,392.75-459,360.45

Finding the Fourth Proportional to 839,012.72, 1,257,392.75 and 459,360.45

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Solution

The fourth proportional to 839,012.72, 1,257,392.75 and 459,360.45 is: 688,424.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,012.72 : 1,257,392.75 = 459,360.45 : x
  2. Step 2: Convert to fraction form
    839,012.72/1,257,392.75 = 459,360.45/x
  3. Step 3: Cross multiply
    839,012.72x = 1,257,392.75 × 459,360.45
  4. Step 4: Simplify right side
    839,012.72x = 577,596,497,169.94
  5. Step 5: Solve for x
    x = 577,596,497,169.94/839,012.72
  6. Step 6: Final answer
    x = 688,424.01

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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.