Home / 823,544.16-1,137,200.16-518,129.58

Finding the Fourth Proportional to 823,544.16, 1,137,200.16 and 518,129.58

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Solution

The fourth proportional to 823,544.16, 1,137,200.16 and 518,129.58 is: 715,465.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    823,544.16 : 1,137,200.16 = 518,129.58 : x
  2. Step 2: Convert to fraction form
    823,544.16/1,137,200.16 = 518,129.58/x
  3. Step 3: Cross multiply
    823,544.16x = 1,137,200.16 × 518,129.58
  4. Step 4: Simplify right side
    823,544.16x = 589,217,041,276.73
  5. Step 5: Solve for x
    x = 589,217,041,276.73/823,544.16
  6. Step 6: Final answer
    x = 715,465.02

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.