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Finding the Fourth Proportional to 368,587.70, 508,667.40 and 207,453.20

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Solution

The fourth proportional to 368,587.70, 508,667.40 and 207,453.20 is: 286,294.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,587.70 : 508,667.40 = 207,453.20 : x
  2. Step 2: Convert to fraction form
    368,587.70/508,667.40 = 207,453.20/x
  3. Step 3: Cross multiply
    368,587.70x = 508,667.40 × 207,453.20
  4. Step 4: Simplify right side
    368,587.70x = 105,524,679,865.68
  5. Step 5: Solve for x
    x = 105,524,679,865.68/368,587.70
  6. Step 6: Final answer
    x = 286,294.63

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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.