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Finding the Fourth Proportional to 702,013.51, 968,695.23 and 396,072.01

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Solution

The fourth proportional to 702,013.51, 968,695.23 and 396,072.01 is: 546,532.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    702,013.51 : 968,695.23 = 396,072.01 : x
  2. Step 2: Convert to fraction form
    702,013.51/968,695.23 = 396,072.01/x
  3. Step 3: Cross multiply
    702,013.51x = 968,695.23 × 396,072.01
  4. Step 4: Simplify right side
    702,013.51x = 383,673,066,823.51
  5. Step 5: Solve for x
    x = 383,673,066,823.51/702,013.51
  6. Step 6: Final answer
    x = 546,532.31

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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.