Home / 531,255.81-733,111.67-289,533.20

Finding the Fourth Proportional to 531,255.81, 733,111.67 and 289,533.20

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Solution

The fourth proportional to 531,255.81, 733,111.67 and 289,533.20 is: 399,544.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    531,255.81 : 733,111.67 = 289,533.20 : x
  2. Step 2: Convert to fraction form
    531,255.81/733,111.67 = 289,533.20/x
  3. Step 3: Cross multiply
    531,255.81x = 733,111.67 × 289,533.20
  4. Step 4: Simplify right side
    531,255.81x = 212,260,167,772.44
  5. Step 5: Solve for x
    x = 212,260,167,772.44/531,255.81
  6. Step 6: Final answer
    x = 399,544.19

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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.