Home / 717,072,220.36-990,017,366-585,228,196.36

Finding the Fourth Proportional to 717,072,220.36, 990,017,366 and 585,228,196.36

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Solution

The fourth proportional to 717,072,220.36, 990,017,366 and 585,228,196.36 is: 807,988,457.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    717,072,220.36 : 990,017,366 = 585,228,196.36 : x
  2. Step 2: Convert to fraction form
    717,072,220.36/990,017,366 = 585,228,196.36/x
  3. Step 3: Cross multiply
    717,072,220.36x = 990,017,366 × 585,228,196.36
  4. Step 4: Simplify right side
    717,072,220.36x = 579,386,077,469,257,984
  5. Step 5: Solve for x
    x = 579,386,077,469,257,984/717,072,220.36
  6. Step 6: Final answer
    x = 807,988,457.81

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Double scale
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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.