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Finding the Fourth Proportional to 623,611.80, 935,693.10 and 303,586.20

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Solution

The fourth proportional to 623,611.80, 935,693.10 and 303,586.20 is: 455,513.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    623,611.80 : 935,693.10 = 303,586.20 : x
  2. Step 2: Convert to fraction form
    623,611.80/935,693.10 = 303,586.20/x
  3. Step 3: Cross multiply
    623,611.80x = 935,693.10 × 303,586.20
  4. Step 4: Simplify right side
    623,611.80x = 284,063,512,595.22
  5. Step 5: Solve for x
    x = 284,063,512,595.22/623,611.80
  6. Step 6: Final answer
    x = 455,513.37

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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.