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Finding the Fourth Proportional to 626,094.36, 864,015.66 and 354,164.40

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Solution

The fourth proportional to 626,094.36, 864,015.66 and 354,164.40 is: 488,749.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,094.36 : 864,015.66 = 354,164.40 : x
  2. Step 2: Convert to fraction form
    626,094.36/864,015.66 = 354,164.40/x
  3. Step 3: Cross multiply
    626,094.36x = 864,015.66 × 354,164.40
  4. Step 4: Simplify right side
    626,094.36x = 306,003,587,814.50
  5. Step 5: Solve for x
    x = 306,003,587,814.50/626,094.36
  6. Step 6: Final answer
    x = 488,749.95

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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.