Home / 523,346,443.16-722,222,867.96-288,405,533.28

Finding the Fourth Proportional to 523,346,443.16, 722,222,867.96 and 288,405,533.28

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Solution

The fourth proportional to 523,346,443.16, 722,222,867.96 and 288,405,533.28 is: 398,002,268.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    523,346,443.16 : 722,222,867.96 = 288,405,533.28 : x
  2. Step 2: Convert to fraction form
    523,346,443.16/722,222,867.96 = 288,405,533.28/x
  3. Step 3: Cross multiply
    523,346,443.16x = 722,222,867.96 × 288,405,533.28
  4. Step 4: Simplify right side
    523,346,443.16x = 208,293,071,381,014,816
  5. Step 5: Solve for x
    x = 208,293,071,381,014,816/523,346,443.16
  6. Step 6: Final answer
    x = 398,002,268.10

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