Home / 830,538.45-1,245,807.68-451,640.70

Finding the Fourth Proportional to 830,538.45, 1,245,807.68 and 451,640.70

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Solution

The fourth proportional to 830,538.45, 1,245,807.68 and 451,640.70 is: 677,461.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    830,538.45 : 1,245,807.68 = 451,640.70 : x
  2. Step 2: Convert to fraction form
    830,538.45/1,245,807.68 = 451,640.70/x
  3. Step 3: Cross multiply
    830,538.45x = 1,245,807.68 × 451,640.70
  4. Step 4: Simplify right side
    830,538.45x = 562,657,450,402.37
  5. Step 5: Solve for x
    x = 562,657,450,402.37/830,538.45
  6. Step 6: Final answer
    x = 677,461.05

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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.