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Finding the Fourth Proportional to 577,057.40, 864,894.90 and 296,430.20

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Solution

The fourth proportional to 577,057.40, 864,894.90 and 296,430.20 is: 444,290.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,057.40 : 864,894.90 = 296,430.20 : x
  2. Step 2: Convert to fraction form
    577,057.40/864,894.90 = 296,430.20/x
  3. Step 3: Cross multiply
    577,057.40x = 864,894.90 × 296,430.20
  4. Step 4: Simplify right side
    577,057.40x = 256,380,968,185.98
  5. Step 5: Solve for x
    x = 256,380,968,185.98/577,057.40
  6. Step 6: Final answer
    x = 444,290.24

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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.