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Finding the Fourth Proportional to 695,676.08, 960,005.60 and 393,870.08

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Solution

The fourth proportional to 695,676.08, 960,005.60 and 393,870.08 is: 543,525.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    695,676.08 : 960,005.60 = 393,870.08 : x
  2. Step 2: Convert to fraction form
    695,676.08/960,005.60 = 393,870.08/x
  3. Step 3: Cross multiply
    695,676.08x = 960,005.60 × 393,870.08
  4. Step 4: Simplify right side
    695,676.08x = 378,117,482,472.45
  5. Step 5: Solve for x
    x = 378,117,482,472.45/695,676.08
  6. Step 6: Final answer
    x = 543,525.20

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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.