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Finding the Fourth Proportional to 700,653.36, 966,950.64 and 398,847.36

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Solution

The fourth proportional to 700,653.36, 966,950.64 and 398,847.36 is: 550,437.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    700,653.36 : 966,950.64 = 398,847.36 : x
  2. Step 2: Convert to fraction form
    700,653.36/966,950.64 = 398,847.36/x
  3. Step 3: Cross multiply
    700,653.36x = 966,950.64 × 398,847.36
  4. Step 4: Simplify right side
    700,653.36x = 385,665,710,014.31
  5. Step 5: Solve for x
    x = 385,665,710,014.31/700,653.36
  6. Step 6: Final answer
    x = 550,437.25

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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.