Home / 899,993.58-1,242,303.66-518,172.54

Finding the Fourth Proportional to 899,993.58, 1,242,303.66 and 518,172.54

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Solution

The fourth proportional to 899,993.58, 1,242,303.66 and 518,172.54 is: 715,258.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    899,993.58 : 1,242,303.66 = 518,172.54 : x
  2. Step 2: Convert to fraction form
    899,993.58/1,242,303.66 = 518,172.54/x
  3. Step 3: Cross multiply
    899,993.58x = 1,242,303.66 × 518,172.54
  4. Step 4: Simplify right side
    899,993.58x = 643,727,642,953.50
  5. Step 5: Solve for x
    x = 643,727,642,953.50/899,993.58
  6. Step 6: Final answer
    x = 715,258.04

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Double scale
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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.