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Finding the Fourth Proportional to 631,646.67, 947,109.81 and 375,587.31

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Solution

The fourth proportional to 631,646.67, 947,109.81 and 375,587.31 is: 563,166.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,646.67 : 947,109.81 = 375,587.31 : x
  2. Step 2: Convert to fraction form
    631,646.67/947,109.81 = 375,587.31/x
  3. Step 3: Cross multiply
    631,646.67x = 947,109.81 × 375,587.31
  4. Step 4: Simplify right side
    631,646.67x = 355,722,425,812.51
  5. Step 5: Solve for x
    x = 355,722,425,812.51/631,646.67
  6. Step 6: Final answer
    x = 563,166.79

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.