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Finding the Fourth Proportional to 397,070.64, 547,710.66 and 235,809.36

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Solution

The fourth proportional to 397,070.64, 547,710.66 and 235,809.36 is: 325,270.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,070.64 : 547,710.66 = 235,809.36 : x
  2. Step 2: Convert to fraction form
    397,070.64/547,710.66 = 235,809.36/x
  3. Step 3: Cross multiply
    397,070.64x = 547,710.66 × 235,809.36
  4. Step 4: Simplify right side
    397,070.64x = 129,155,300,199.78
  5. Step 5: Solve for x
    x = 129,155,300,199.78/397,070.64
  6. Step 6: Final answer
    x = 325,270.34

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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.