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Finding the Fourth Proportional to 417,308.40, 626,618.70 and 240,161.40

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Solution

The fourth proportional to 417,308.40, 626,618.70 and 240,161.40 is: 360,619.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    417,308.40 : 626,618.70 = 240,161.40 : x
  2. Step 2: Convert to fraction form
    417,308.40/626,618.70 = 240,161.40/x
  3. Step 3: Cross multiply
    417,308.40x = 626,618.70 × 240,161.40
  4. Step 4: Simplify right side
    417,308.40x = 150,489,624,258.18
  5. Step 5: Solve for x
    x = 150,489,624,258.18/417,308.40
  6. Step 6: Final answer
    x = 360,619.69

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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.