Home / 886,686.40-1,329,122.40-436,715.20

Finding the Fourth Proportional to 886,686.40, 1,329,122.40 and 436,715.20

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Solution

The fourth proportional to 886,686.40, 1,329,122.40 and 436,715.20 is: 654,625.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    886,686.40 : 1,329,122.40 = 436,715.20 : x
  2. Step 2: Convert to fraction form
    886,686.40/1,329,122.40 = 436,715.20/x
  3. Step 3: Cross multiply
    886,686.40x = 1,329,122.40 × 436,715.20
  4. Step 4: Simplify right side
    886,686.40x = 580,447,954,740.48
  5. Step 5: Solve for x
    x = 580,447,954,740.48/886,686.40
  6. Step 6: Final answer
    x = 654,625.98

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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.