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Finding the Fourth Proportional to 374,460.60, 561,690.90 and 254,710.20

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Solution

The fourth proportional to 374,460.60, 561,690.90 and 254,710.20 is: 382,065.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,460.60 : 561,690.90 = 254,710.20 : x
  2. Step 2: Convert to fraction form
    374,460.60/561,690.90 = 254,710.20/x
  3. Step 3: Cross multiply
    374,460.60x = 561,690.90 × 254,710.20
  4. Step 4: Simplify right side
    374,460.60x = 143,068,401,477.18
  5. Step 5: Solve for x
    x = 143,068,401,477.18/374,460.60
  6. Step 6: Final answer
    x = 382,065.30

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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.