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Finding the Fourth Proportional to 374,616.80, 561,925.20 and 214,528.40

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Solution

The fourth proportional to 374,616.80, 561,925.20 and 214,528.40 is: 321,792.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,616.80 : 561,925.20 = 214,528.40 : x
  2. Step 2: Convert to fraction form
    374,616.80/561,925.20 = 214,528.40/x
  3. Step 3: Cross multiply
    374,616.80x = 561,925.20 × 214,528.40
  4. Step 4: Simplify right side
    374,616.80x = 120,548,914,075.68
  5. Step 5: Solve for x
    x = 120,548,914,075.68/374,616.80
  6. Step 6: Final answer
    x = 321,792.60

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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.