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Finding the Fourth Proportional to 693,209.88, 956,600.28 and 435,221.64

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Solution

The fourth proportional to 693,209.88, 956,600.28 and 435,221.64 is: 600,587.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    693,209.88 : 956,600.28 = 435,221.64 : x
  2. Step 2: Convert to fraction form
    693,209.88/956,600.28 = 435,221.64/x
  3. Step 3: Cross multiply
    693,209.88x = 956,600.28 × 435,221.64
  4. Step 4: Simplify right side
    693,209.88x = 416,333,142,686.06
  5. Step 5: Solve for x
    x = 416,333,142,686.06/693,209.88
  6. Step 6: Final answer
    x = 600,587.43

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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.