Home / 830,503.20-1,245,754.80-451,605.45

Finding the Fourth Proportional to 830,503.20, 1,245,754.80 and 451,605.45

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Solution

The fourth proportional to 830,503.20, 1,245,754.80 and 451,605.45 is: 677,408.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    830,503.20 : 1,245,754.80 = 451,605.45 : x
  2. Step 2: Convert to fraction form
    830,503.20/1,245,754.80 = 451,605.45/x
  3. Step 3: Cross multiply
    830,503.20x = 1,245,754.80 × 451,605.45
  4. Step 4: Simplify right side
    830,503.20x = 562,589,657,043.66
  5. Step 5: Solve for x
    x = 562,589,657,043.66/830,503.20
  6. Step 6: Final answer
    x = 677,408.18

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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.