Home / 697,661.20-1,045,416.60-519,331.60

Finding the Fourth Proportional to 697,661.20, 1,045,416.60 and 519,331.60

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Solution

The fourth proportional to 697,661.20, 1,045,416.60 and 519,331.60 is: 778,197.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    697,661.20 : 1,045,416.60 = 519,331.60 : x
  2. Step 2: Convert to fraction form
    697,661.20/1,045,416.60 = 519,331.60/x
  3. Step 3: Cross multiply
    697,661.20x = 1,045,416.60 × 519,331.60
  4. Step 4: Simplify right side
    697,661.20x = 542,917,875,544.56
  5. Step 5: Solve for x
    x = 542,917,875,544.56/697,661.20
  6. Step 6: Final answer
    x = 778,197.03

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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.