Home / 638,348.45-956,327.12-572,621.81

Finding the Fourth Proportional to 638,348.45, 956,327.12 and 572,621.81

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Solution

The fourth proportional to 638,348.45, 956,327.12 and 572,621.81 is: 857,860.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,348.45 : 956,327.12 = 572,621.81 : x
  2. Step 2: Convert to fraction form
    638,348.45/956,327.12 = 572,621.81/x
  3. Step 3: Cross multiply
    638,348.45x = 956,327.12 × 572,621.81
  4. Step 4: Simplify right side
    638,348.45x = 547,613,765,934.20
  5. Step 5: Solve for x
    x = 547,613,765,934.20/638,348.45
  6. Step 6: Final answer
    x = 857,860.25

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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.