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Finding the Fourth Proportional to 606,858.90, 837,265.56 and 392,125.50

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Solution

The fourth proportional to 606,858.90, 837,265.56 and 392,125.50 is: 541,004.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    606,858.90 : 837,265.56 = 392,125.50 : x
  2. Step 2: Convert to fraction form
    606,858.90/837,265.56 = 392,125.50/x
  3. Step 3: Cross multiply
    606,858.90x = 837,265.56 × 392,125.50
  4. Step 4: Simplify right side
    606,858.90x = 328,313,176,347.78
  5. Step 5: Solve for x
    x = 328,313,176,347.78/606,858.90
  6. Step 6: Final answer
    x = 541,004.14

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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.