Home / 738,619,643.77-1,019,319,270.80-404,084,405.52

Finding the Fourth Proportional to 738,619,643.77, 1,019,319,270.80 and 404,084,405.52

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Solution

The fourth proportional to 738,619,643.77, 1,019,319,270.80 and 404,084,405.52 is: 557,649,698.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    738,619,643.77 : 1,019,319,270.80 = 404,084,405.52 : x
  2. Step 2: Convert to fraction form
    738,619,643.77/1,019,319,270.80 = 404,084,405.52/x
  3. Step 3: Cross multiply
    738,619,643.77x = 1,019,319,270.80 × 404,084,405.52
  4. Step 4: Simplify right side
    738,619,643.77x = 411,891,021,574,277,440
  5. Step 5: Solve for x
    x = 411,891,021,574,277,440/738,619,643.77
  6. Step 6: Final answer
    x = 557,649,698.39

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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.