Home / 521,683.20-719,884.80-295,315.20

Finding the Fourth Proportional to 521,683.20, 719,884.80 and 295,315.20

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Solution

The fourth proportional to 521,683.20, 719,884.80 and 295,315.20 is: 407,513.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,683.20 : 719,884.80 = 295,315.20 : x
  2. Step 2: Convert to fraction form
    521,683.20/719,884.80 = 295,315.20/x
  3. Step 3: Cross multiply
    521,683.20x = 719,884.80 × 295,315.20
  4. Step 4: Simplify right side
    521,683.20x = 212,592,923,688.96
  5. Step 5: Solve for x
    x = 212,592,923,688.96/521,683.20
  6. Step 6: Final answer
    x = 407,513.46

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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.