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Finding the Fourth Proportional to 679,161.51, 937,242.63 and 377,355.51

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Solution

The fourth proportional to 679,161.51, 937,242.63 and 377,355.51 is: 520,750.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,161.51 : 937,242.63 = 377,355.51 : x
  2. Step 2: Convert to fraction form
    679,161.51/937,242.63 = 377,355.51/x
  3. Step 3: Cross multiply
    679,161.51x = 937,242.63 × 377,355.51
  4. Step 4: Simplify right side
    679,161.51x = 353,673,670,637.39
  5. Step 5: Solve for x
    x = 353,673,670,637.39/679,161.51
  6. Step 6: Final answer
    x = 520,750.46

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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.