Home / 723,638.56-1,085,509.80-191,154.40

Finding the Fourth Proportional to 723,638.56, 1,085,509.80 and 191,154.40

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Solution

The fourth proportional to 723,638.56, 1,085,509.80 and 191,154.40 is: 286,745.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    723,638.56 : 1,085,509.80 = 191,154.40 : x
  2. Step 2: Convert to fraction form
    723,638.56/1,085,509.80 = 191,154.40/x
  3. Step 3: Cross multiply
    723,638.56x = 1,085,509.80 × 191,154.40
  4. Step 4: Simplify right side
    723,638.56x = 207,499,974,513.12
  5. Step 5: Solve for x
    x = 207,499,974,513.12/723,638.56
  6. Step 6: Final answer
    x = 286,745.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.