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Finding the Fourth Proportional to 374,465.85, 561,698.78 and 372,133.05

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Solution

The fourth proportional to 374,465.85, 561,698.78 and 372,133.05 is: 558,199.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,465.85 : 561,698.78 = 372,133.05 : x
  2. Step 2: Convert to fraction form
    374,465.85/561,698.78 = 372,133.05/x
  3. Step 3: Cross multiply
    374,465.85x = 561,698.78 × 372,133.05
  4. Step 4: Simplify right side
    374,465.85x = 209,026,678,322.01
  5. Step 5: Solve for x
    x = 209,026,678,322.01/374,465.85
  6. Step 6: Final answer
    x = 558,199.58

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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.