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Finding the Fourth Proportional to 706,955.40, 1,058,877.90 and 691,403.40

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Solution

The fourth proportional to 706,955.40, 1,058,877.90 and 691,403.40 is: 1,035,584.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    706,955.40 : 1,058,877.90 = 691,403.40 : x
  2. Step 2: Convert to fraction form
    706,955.40/1,058,877.90 = 691,403.40/x
  3. Step 3: Cross multiply
    706,955.40x = 1,058,877.90 × 691,403.40
  4. Step 4: Simplify right side
    706,955.40x = 732,111,780,244.86
  5. Step 5: Solve for x
    x = 732,111,780,244.86/706,955.40
  6. Step 6: Final answer
    x = 1,035,584.11

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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.