Home / 545,036.38-751,370.68-383,389.72

Finding the Fourth Proportional to 545,036.38, 751,370.68 and 383,389.72

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Solution

The fourth proportional to 545,036.38, 751,370.68 and 383,389.72 is: 528,529.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,036.38 : 751,370.68 = 383,389.72 : x
  2. Step 2: Convert to fraction form
    545,036.38/751,370.68 = 383,389.72/x
  3. Step 3: Cross multiply
    545,036.38x = 751,370.68 × 383,389.72
  4. Step 4: Simplify right side
    545,036.38x = 288,067,794,621.41
  5. Step 5: Solve for x
    x = 288,067,794,621.41/545,036.38
  6. Step 6: Final answer
    x = 528,529.48

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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.