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Finding the Fourth Proportional to 702,012.51, 968,693.85 and 396,071.01

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Solution

The fourth proportional to 702,012.51, 968,693.85 and 396,071.01 is: 546,530.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    702,012.51 : 968,693.85 = 396,071.01 : x
  2. Step 2: Convert to fraction form
    702,012.51/968,693.85 = 396,071.01/x
  3. Step 3: Cross multiply
    702,012.51x = 968,693.85 × 396,071.01
  4. Step 4: Simplify right side
    702,012.51x = 383,671,551,550.29
  5. Step 5: Solve for x
    x = 383,671,551,550.29/702,012.51
  6. Step 6: Final answer
    x = 546,530.93

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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.