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Finding the Fourth Proportional to 652,221.55, 900,074.70 and 488,588.17

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Solution

The fourth proportional to 652,221.55, 900,074.70 and 488,588.17 is: 674,258.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    652,221.55 : 900,074.70 = 488,588.17 : x
  2. Step 2: Convert to fraction form
    652,221.55/900,074.70 = 488,588.17/x
  3. Step 3: Cross multiply
    652,221.55x = 900,074.70 × 488,588.17
  4. Step 4: Simplify right side
    652,221.55x = 439,765,850,536.30
  5. Step 5: Solve for x
    x = 439,765,850,536.30/652,221.55
  6. Step 6: Final answer
    x = 674,258.39

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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.