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Finding the Fourth Proportional to 517,667.85, 714,380.18 and 291,313.35

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Solution

The fourth proportional to 517,667.85, 714,380.18 and 291,313.35 is: 402,011.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    517,667.85 : 714,380.18 = 291,313.35 : x
  2. Step 2: Convert to fraction form
    517,667.85/714,380.18 = 291,313.35/x
  3. Step 3: Cross multiply
    517,667.85x = 714,380.18 × 291,313.35
  4. Step 4: Simplify right side
    517,667.85x = 208,108,481,952.84
  5. Step 5: Solve for x
    x = 208,108,481,952.84/517,667.85
  6. Step 6: Final answer
    x = 402,011.60

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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.