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Finding the Fourth Proportional to 702,116.76, 968,918.22 and 379,826.10

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Solution

The fourth proportional to 702,116.76, 968,918.22 and 379,826.10 is: 524,158.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    702,116.76 : 968,918.22 = 379,826.10 : x
  2. Step 2: Convert to fraction form
    702,116.76/968,918.22 = 379,826.10/x
  3. Step 3: Cross multiply
    702,116.76x = 968,918.22 × 379,826.10
  4. Step 4: Simplify right side
    702,116.76x = 368,020,428,721.54
  5. Step 5: Solve for x
    x = 368,020,428,721.54/702,116.76
  6. Step 6: Final answer
    x = 524,158.44

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Double scale
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1.5x scale

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.