Home / 531,358.27-733,259.80-289,645.57

Finding the Fourth Proportional to 531,358.27, 733,259.80 and 289,645.57

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Solution

The fourth proportional to 531,358.27, 733,259.80 and 289,645.57 is: 399,702.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    531,358.27 : 733,259.80 = 289,645.57 : x
  2. Step 2: Convert to fraction form
    531,358.27/733,259.80 = 289,645.57/x
  3. Step 3: Cross multiply
    531,358.27x = 733,259.80 × 289,645.57
  4. Step 4: Simplify right side
    531,358.27x = 212,385,452,729.09
  5. Step 5: Solve for x
    x = 212,385,452,729.09/531,358.27
  6. Step 6: Final answer
    x = 399,702.92

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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.