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Finding the Fourth Proportional to 519,850.32, 717,441.66 and 315,854.22

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Solution

The fourth proportional to 519,850.32, 717,441.66 and 315,854.22 is: 435,908.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,850.32 : 717,441.66 = 315,854.22 : x
  2. Step 2: Convert to fraction form
    519,850.32/717,441.66 = 315,854.22/x
  3. Step 3: Cross multiply
    519,850.32x = 717,441.66 × 315,854.22
  4. Step 4: Simplify right side
    519,850.32x = 226,606,975,914.81
  5. Step 5: Solve for x
    x = 226,606,975,914.81/519,850.32
  6. Step 6: Final answer
    x = 435,908.12

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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.