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Finding the Fourth Proportional to 374,416.20, 525,115.80 and 374,416.20

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Solution

The fourth proportional to 374,416.20, 525,115.80 and 374,416.20 is: 525,115.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,416.20 : 525,115.80 = 374,416.20 : x
  2. Step 2: Convert to fraction form
    374,416.20/525,115.80 = 374,416.20/x
  3. Step 3: Cross multiply
    374,416.20x = 525,115.80 × 374,416.20
  4. Step 4: Simplify right side
    374,416.20x = 196,611,862,395.96
  5. Step 5: Solve for x
    x = 196,611,862,395.96/374,416.20
  6. Step 6: Final answer
    x = 525,115.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.