Home / 903,921.71-1,247,408.53-496,030.37

Finding the Fourth Proportional to 903,921.71, 1,247,408.53 and 496,030.37

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Solution

The fourth proportional to 903,921.71, 1,247,408.53 and 496,030.37 is: 684,520.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    903,921.71 : 1,247,408.53 = 496,030.37 : x
  2. Step 2: Convert to fraction form
    903,921.71/1,247,408.53 = 496,030.37/x
  3. Step 3: Cross multiply
    903,921.71x = 1,247,408.53 × 496,030.37
  4. Step 4: Simplify right side
    903,921.71x = 618,752,507,199.94
  5. Step 5: Solve for x
    x = 618,752,507,199.94/903,921.71
  6. Step 6: Final answer
    x = 684,520.02

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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.