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Finding the Fourth Proportional to 317,598.30, 438,259.61 and 174,353.45

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Solution

The fourth proportional to 317,598.30, 438,259.61 and 174,353.45 is: 240,593.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,598.30 : 438,259.61 = 174,353.45 : x
  2. Step 2: Convert to fraction form
    317,598.30/438,259.61 = 174,353.45/x
  3. Step 3: Cross multiply
    317,598.30x = 438,259.61 × 174,353.45
  4. Step 4: Simplify right side
    317,598.30x = 76,412,073,243.74
  5. Step 5: Solve for x
    x = 76,412,073,243.74/317,598.30
  6. Step 6: Final answer
    x = 240,593.46

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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.