Home / 838,685.95-1,157,356.20-512,544.59

Finding the Fourth Proportional to 838,685.95, 1,157,356.20 and 512,544.59

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Solution

The fourth proportional to 838,685.95, 1,157,356.20 and 512,544.59 is: 707,292.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    838,685.95 : 1,157,356.20 = 512,544.59 : x
  2. Step 2: Convert to fraction form
    838,685.95/1,157,356.20 = 512,544.59/x
  3. Step 3: Cross multiply
    838,685.95x = 1,157,356.20 × 512,544.59
  4. Step 4: Simplify right side
    838,685.95x = 593,196,659,012.96
  5. Step 5: Solve for x
    x = 593,196,659,012.96/838,685.95
  6. Step 6: Final answer
    x = 707,292.95

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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.