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Finding the Fourth Proportional to 670,973.82, 925,591.08 and 398,848.14

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Solution

The fourth proportional to 670,973.82, 925,591.08 and 398,848.14 is: 550,200.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    670,973.82 : 925,591.08 = 398,848.14 : x
  2. Step 2: Convert to fraction form
    670,973.82/925,591.08 = 398,848.14/x
  3. Step 3: Cross multiply
    670,973.82x = 925,591.08 × 398,848.14
  4. Step 4: Simplify right side
    670,973.82x = 369,170,280,658.59
  5. Step 5: Solve for x
    x = 369,170,280,658.59/670,973.82
  6. Step 6: Final answer
    x = 550,200.72

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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.