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Finding the Fourth Proportional to 477,956.70, 716,967.45 and 162,437.40

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Solution

The fourth proportional to 477,956.70, 716,967.45 and 162,437.40 is: 243,667.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    477,956.70 : 716,967.45 = 162,437.40 : x
  2. Step 2: Convert to fraction form
    477,956.70/716,967.45 = 162,437.40/x
  3. Step 3: Cross multiply
    477,956.70x = 716,967.45 × 162,437.40
  4. Step 4: Simplify right side
    477,956.70x = 116,462,328,462.63
  5. Step 5: Solve for x
    x = 116,462,328,462.63/477,956.70
  6. Step 6: Final answer
    x = 243,667.11

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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.