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Finding the Fourth Proportional to 706,910.40, 1,058,810.40 and 613,598.40

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Solution

The fourth proportional to 706,910.40, 1,058,810.40 and 613,598.40 is: 919,047.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    706,910.40 : 1,058,810.40 = 613,598.40 : x
  2. Step 2: Convert to fraction form
    706,910.40/1,058,810.40 = 613,598.40/x
  3. Step 3: Cross multiply
    706,910.40x = 1,058,810.40 × 613,598.40
  4. Step 4: Simplify right side
    706,910.40x = 649,684,367,343.36
  5. Step 5: Solve for x
    x = 649,684,367,343.36/706,910.40
  6. Step 6: Final answer
    x = 919,047.69

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1.5x scale

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.