Home / 692,581.80-1,039,715.10-439,861.80

Finding the Fourth Proportional to 692,581.80, 1,039,715.10 and 439,861.80

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Solution

The fourth proportional to 692,581.80, 1,039,715.10 and 439,861.80 is: 660,327.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    692,581.80 : 1,039,715.10 = 439,861.80 : x
  2. Step 2: Convert to fraction form
    692,581.80/1,039,715.10 = 439,861.80/x
  3. Step 3: Cross multiply
    692,581.80x = 1,039,715.10 × 439,861.80
  4. Step 4: Simplify right side
    692,581.80x = 457,330,955,373.18
  5. Step 5: Solve for x
    x = 457,330,955,373.18/692,581.80
  6. Step 6: Final answer
    x = 660,327.71

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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.