Home / 349,777.05-521,937.53-312,077.93

Finding the Fourth Proportional to 349,777.05, 521,937.53 and 312,077.93

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Solution

The fourth proportional to 349,777.05, 521,937.53 and 312,077.93 is: 465,682.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    349,777.05 : 521,937.53 = 312,077.93 : x
  2. Step 2: Convert to fraction form
    349,777.05/521,937.53 = 312,077.93/x
  3. Step 3: Cross multiply
    349,777.05x = 521,937.53 × 312,077.93
  4. Step 4: Simplify right side
    349,777.05x = 162,885,180,951.93
  5. Step 5: Solve for x
    x = 162,885,180,951.93/349,777.05
  6. Step 6: Final answer
    x = 465,682.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.