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Finding the Fourth Proportional to 706,161.66, 974,507.67 and 383,874.54

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Solution

The fourth proportional to 706,161.66, 974,507.67 and 383,874.54 is: 529,749.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    706,161.66 : 974,507.67 = 383,874.54 : x
  2. Step 2: Convert to fraction form
    706,161.66/974,507.67 = 383,874.54/x
  3. Step 3: Cross multiply
    706,161.66x = 974,507.67 × 383,874.54
  4. Step 4: Simplify right side
    706,161.66x = 374,088,683,547.72
  5. Step 5: Solve for x
    x = 374,088,683,547.72/706,161.66
  6. Step 6: Final answer
    x = 529,749.35

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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.