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Finding the Fourth Proportional to 374,720.72, 562,075.84 and 90,408.89

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Solution

The fourth proportional to 374,720.72, 562,075.84 and 90,408.89 is: 135,612.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,720.72 : 562,075.84 = 90,408.89 : x
  2. Step 2: Convert to fraction form
    374,720.72/562,075.84 = 90,408.89/x
  3. Step 3: Cross multiply
    374,720.72x = 562,075.84 × 90,408.89
  4. Step 4: Simplify right side
    374,720.72x = 50,816,654,308.42
  5. Step 5: Solve for x
    x = 50,816,654,308.42/374,720.72
  6. Step 6: Final answer
    x = 135,612.08

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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.