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Finding the Fourth Proportional to 476,365.84, 657,387.62 and 261,507.67

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Solution

The fourth proportional to 476,365.84, 657,387.62 and 261,507.67 is: 360,882.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    476,365.84 : 657,387.62 = 261,507.67 : x
  2. Step 2: Convert to fraction form
    476,365.84/657,387.62 = 261,507.67/x
  3. Step 3: Cross multiply
    476,365.84x = 657,387.62 × 261,507.67
  4. Step 4: Simplify right side
    476,365.84x = 171,911,904,793.05
  5. Step 5: Solve for x
    x = 171,911,904,793.05/476,365.84
  6. Step 6: Final answer
    x = 360,882.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.