Home / 919,689.75-1,269,153.07-575,715.37

Finding the Fourth Proportional to 919,689.75, 1,269,153.07 and 575,715.37

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Solution

The fourth proportional to 919,689.75, 1,269,153.07 and 575,715.37 is: 794,475.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    919,689.75 : 1,269,153.07 = 575,715.37 : x
  2. Step 2: Convert to fraction form
    919,689.75/1,269,153.07 = 575,715.37/x
  3. Step 3: Cross multiply
    919,689.75x = 1,269,153.07 × 575,715.37
  4. Step 4: Simplify right side
    919,689.75x = 730,670,929,281.69
  5. Step 5: Solve for x
    x = 730,670,929,281.69/919,689.75
  6. Step 6: Final answer
    x = 794,475.45

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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.