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Finding the Fourth Proportional to 607,897.80, 911,846.70 and 187,302.60

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Solution

The fourth proportional to 607,897.80, 911,846.70 and 187,302.60 is: 280,953.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    607,897.80 : 911,846.70 = 187,302.60 : x
  2. Step 2: Convert to fraction form
    607,897.80/911,846.70 = 187,302.60/x
  3. Step 3: Cross multiply
    607,897.80x = 911,846.70 × 187,302.60
  4. Step 4: Simplify right side
    607,897.80x = 170,791,257,711.42
  5. Step 5: Solve for x
    x = 170,791,257,711.42/607,897.80
  6. Step 6: Final answer
    x = 280,953.90

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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.