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Finding the Fourth Proportional to 528,604.96, 790,001.48 and 386,747.68

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Solution

The fourth proportional to 528,604.96, 790,001.48 and 386,747.68 is: 577,995.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,604.96 : 790,001.48 = 386,747.68 : x
  2. Step 2: Convert to fraction form
    528,604.96/790,001.48 = 386,747.68/x
  3. Step 3: Cross multiply
    528,604.96x = 790,001.48 × 386,747.68
  4. Step 4: Simplify right side
    528,604.96x = 305,531,239,586.57
  5. Step 5: Solve for x
    x = 305,531,239,586.57/528,604.96
  6. Step 6: Final answer
    x = 577,995.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.