Home / 668,085.80-1,000,767.90-414,588.20

Finding the Fourth Proportional to 668,085.80, 1,000,767.90 and 414,588.20

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Solution

The fourth proportional to 668,085.80, 1,000,767.90 and 414,588.20 is: 621,037.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,085.80 : 1,000,767.90 = 414,588.20 : x
  2. Step 2: Convert to fraction form
    668,085.80/1,000,767.90 = 414,588.20/x
  3. Step 3: Cross multiply
    668,085.80x = 1,000,767.90 × 414,588.20
  4. Step 4: Simplify right side
    668,085.80x = 414,906,562,278.78
  5. Step 5: Solve for x
    x = 414,906,562,278.78/668,085.80
  6. Step 6: Final answer
    x = 621,037.84

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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.