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Finding the Fourth Proportional to 702,237.90, 968,812.58 and 407,837.51

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Solution

The fourth proportional to 702,237.90, 968,812.58 and 407,837.51 is: 562,655.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    702,237.90 : 968,812.58 = 407,837.51 : x
  2. Step 2: Convert to fraction form
    702,237.90/968,812.58 = 407,837.51/x
  3. Step 3: Cross multiply
    702,237.90x = 968,812.58 × 407,837.51
  4. Step 4: Simplify right side
    702,237.90x = 395,118,110,092.45
  5. Step 5: Solve for x
    x = 395,118,110,092.45/702,237.90
  6. Step 6: Final answer
    x = 562,655.63

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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.