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Finding the Fourth Proportional to 630,846.40, 943,965.60 and 464,958.40

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Solution

The fourth proportional to 630,846.40, 943,965.60 and 464,958.40 is: 695,739.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,846.40 : 943,965.60 = 464,958.40 : x
  2. Step 2: Convert to fraction form
    630,846.40/943,965.60 = 464,958.40/x
  3. Step 3: Cross multiply
    630,846.40x = 943,965.60 × 464,958.40
  4. Step 4: Simplify right side
    630,846.40x = 438,904,735,031.04
  5. Step 5: Solve for x
    x = 438,904,735,031.04/630,846.40
  6. Step 6: Final answer
    x = 695,739.46

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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.