Home / 688,049.60-1,030,000.80-605,105.60

Finding the Fourth Proportional to 688,049.60, 1,030,000.80 and 605,105.60

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Solution

The fourth proportional to 688,049.60, 1,030,000.80 and 605,105.60 is: 905,834.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,049.60 : 1,030,000.80 = 605,105.60 : x
  2. Step 2: Convert to fraction form
    688,049.60/1,030,000.80 = 605,105.60/x
  3. Step 3: Cross multiply
    688,049.60x = 1,030,000.80 × 605,105.60
  4. Step 4: Simplify right side
    688,049.60x = 623,259,252,084.48
  5. Step 5: Solve for x
    x = 623,259,252,084.48/688,049.60
  6. Step 6: Final answer
    x = 905,834.77

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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.