Home / 505,605,669.28-697,792,566.16-285,603,264.16

Finding the Fourth Proportional to 505,605,669.28, 697,792,566.16 and 285,603,264.16

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Solution

The fourth proportional to 505,605,669.28, 697,792,566.16 and 285,603,264.16 is: 394,164,556.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,605,669.28 : 697,792,566.16 = 285,603,264.16 : x
  2. Step 2: Convert to fraction form
    505,605,669.28/697,792,566.16 = 285,603,264.16/x
  3. Step 3: Cross multiply
    505,605,669.28x = 697,792,566.16 × 285,603,264.16
  4. Step 4: Simplify right side
    505,605,669.28x = 199,291,834,601,878,752
  5. Step 5: Solve for x
    x = 199,291,834,601,878,752/505,605,669.28
  6. Step 6: Final answer
    x = 394,164,556.91

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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.