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Finding the Fourth Proportional to 567,011.57, 781,399.35 and 405,586.35

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Solution

The fourth proportional to 567,011.57, 781,399.35 and 405,586.35 is: 558,939.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    567,011.57 : 781,399.35 = 405,586.35 : x
  2. Step 2: Convert to fraction form
    567,011.57/781,399.35 = 405,586.35/x
  3. Step 3: Cross multiply
    567,011.57x = 781,399.35 × 405,586.35
  4. Step 4: Simplify right side
    567,011.57x = 316,924,910,258.87
  5. Step 5: Solve for x
    x = 316,924,910,258.87/567,011.57
  6. Step 6: Final answer
    x = 558,939.06

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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.