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Finding the Fourth Proportional to 556,816.68, 768,407.51 and 302,167.87

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Solution

The fourth proportional to 556,816.68, 768,407.51 and 302,167.87 is: 416,991.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,816.68 : 768,407.51 = 302,167.87 : x
  2. Step 2: Convert to fraction form
    556,816.68/768,407.51 = 302,167.87/x
  3. Step 3: Cross multiply
    556,816.68x = 768,407.51 × 302,167.87
  4. Step 4: Simplify right side
    556,816.68x = 232,188,058,667.69
  5. Step 5: Solve for x
    x = 232,188,058,667.69/556,816.68
  6. Step 6: Final answer
    x = 416,991.92

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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.