Home / 638,348.21-956,326.75-572,621.57

Finding the Fourth Proportional to 638,348.21, 956,326.75 and 572,621.57

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Solution

The fourth proportional to 638,348.21, 956,326.75 and 572,621.57 is: 857,859.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,348.21 : 956,326.75 = 572,621.57 : x
  2. Step 2: Convert to fraction form
    638,348.21/956,326.75 = 572,621.57/x
  3. Step 3: Cross multiply
    638,348.21x = 956,326.75 × 572,621.57
  4. Step 4: Simplify right side
    638,348.21x = 547,613,317,373.26
  5. Step 5: Solve for x
    x = 547,613,317,373.26/638,348.21
  6. Step 6: Final answer
    x = 857,859.88

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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.