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Finding the Fourth Proportional to 606,354.30, 909,534.60 and 157,043.70

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Solution

The fourth proportional to 606,354.30, 909,534.60 and 157,043.70 is: 235,566.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    606,354.30 : 909,534.60 = 157,043.70 : x
  2. Step 2: Convert to fraction form
    606,354.30/909,534.60 = 157,043.70/x
  3. Step 3: Cross multiply
    606,354.30x = 909,534.60 × 157,043.70
  4. Step 4: Simplify right side
    606,354.30x = 142,836,678,862.02
  5. Step 5: Solve for x
    x = 142,836,678,862.02/606,354.30
  6. Step 6: Final answer
    x = 235,566.37

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1.5x scale

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.