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Finding the Fourth Proportional to 673,509.40, 929,563.38 and 401,594.80

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Solution

The fourth proportional to 673,509.40, 929,563.38 and 401,594.80 is: 554,272.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    673,509.40 : 929,563.38 = 401,594.80 : x
  2. Step 2: Convert to fraction form
    673,509.40/929,563.38 = 401,594.80/x
  3. Step 3: Cross multiply
    673,509.40x = 929,563.38 × 401,594.80
  4. Step 4: Simplify right side
    673,509.40x = 373,307,819,678.42
  5. Step 5: Solve for x
    x = 373,307,819,678.42/673,509.40
  6. Step 6: Final answer
    x = 554,272.62

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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.