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Finding the Fourth Proportional to 710,394.24, 980,363.32 and 424,080.56

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Solution

The fourth proportional to 710,394.24, 980,363.32 and 424,080.56 is: 585,242.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    710,394.24 : 980,363.32 = 424,080.56 : x
  2. Step 2: Convert to fraction form
    710,394.24/980,363.32 = 424,080.56/x
  3. Step 3: Cross multiply
    710,394.24x = 980,363.32 × 424,080.56
  4. Step 4: Simplify right side
    710,394.24x = 415,753,025,749.06
  5. Step 5: Solve for x
    x = 415,753,025,749.06/710,394.24
  6. Step 6: Final answer
    x = 585,242.68

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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.