Home / 856,657.47-1,182,186.93-512,507.96

Finding the Fourth Proportional to 856,657.47, 1,182,186.93 and 512,507.96

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Solution

The fourth proportional to 856,657.47, 1,182,186.93 and 512,507.96 is: 707,260.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    856,657.47 : 1,182,186.93 = 512,507.96 : x
  2. Step 2: Convert to fraction form
    856,657.47/1,182,186.93 = 512,507.96/x
  3. Step 3: Cross multiply
    856,657.47x = 1,182,186.93 × 512,507.96
  4. Step 4: Simplify right side
    856,657.47x = 605,880,205,922.03
  5. Step 5: Solve for x
    x = 605,880,205,922.03/856,657.47
  6. Step 6: Final answer
    x = 707,260.75

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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.