Home / 917,684,100.54-1,376,524,904.22-426,128,577.84

Finding the Fourth Proportional to 917,684,100.54, 1,376,524,904.22 and 426,128,577.84

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Solution

The fourth proportional to 917,684,100.54, 1,376,524,904.22 and 426,128,577.84 is: 639,192,287.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    917,684,100.54 : 1,376,524,904.22 = 426,128,577.84 : x
  2. Step 2: Convert to fraction form
    917,684,100.54/1,376,524,904.22 = 426,128,577.84/x
  3. Step 3: Cross multiply
    917,684,100.54x = 1,376,524,904.22 × 426,128,577.84
  4. Step 4: Simplify right side
    917,684,100.54x = 586,576,599,796,610,816
  5. Step 5: Solve for x
    x = 586,576,599,796,610,816/917,684,100.54
  6. Step 6: Final answer
    x = 639,192,287.90

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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.