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Finding the Fourth Proportional to 633,724.52, 874,212.72 and 429,706.40

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Solution

The fourth proportional to 633,724.52, 874,212.72 and 429,706.40 is: 592,773.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    633,724.52 : 874,212.72 = 429,706.40 : x
  2. Step 2: Convert to fraction form
    633,724.52/874,212.72 = 429,706.40/x
  3. Step 3: Cross multiply
    633,724.52x = 874,212.72 × 429,706.40
  4. Step 4: Simplify right side
    633,724.52x = 375,654,800,745.41
  5. Step 5: Solve for x
    x = 375,654,800,745.41/633,724.52
  6. Step 6: Final answer
    x = 592,773.03

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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.