Home / 646,105,386.24-891,620,818.56-352,749,945.60

Finding the Fourth Proportional to 646,105,386.24, 891,620,818.56 and 352,749,945.60

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Solution

The fourth proportional to 646,105,386.24, 891,620,818.56 and 352,749,945.60 is: 486,792,405.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,105,386.24 : 891,620,818.56 = 352,749,945.60 : x
  2. Step 2: Convert to fraction form
    646,105,386.24/891,620,818.56 = 352,749,945.60/x
  3. Step 3: Cross multiply
    646,105,386.24x = 891,620,818.56 × 352,749,945.60
  4. Step 4: Simplify right side
    646,105,386.24x = 314,519,195,242,867,456
  5. Step 5: Solve for x
    x = 314,519,195,242,867,456/646,105,386.24
  6. Step 6: Final answer
    x = 486,792,405.61

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Double scale
Find fourth proportional to 646,105,387.24, 891,620,819.94 and 352,749,946.60
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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.