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Finding the Fourth Proportional to 430,145.56, 593,597.58 and 239,157.28

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Solution

The fourth proportional to 430,145.56, 593,597.58 and 239,157.28 is: 330,035.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    430,145.56 : 593,597.58 = 239,157.28 : x
  2. Step 2: Convert to fraction form
    430,145.56/593,597.58 = 239,157.28/x
  3. Step 3: Cross multiply
    430,145.56x = 593,597.58 × 239,157.28
  4. Step 4: Simplify right side
    430,145.56x = 141,963,182,647.38
  5. Step 5: Solve for x
    x = 141,963,182,647.38/430,145.56
  6. Step 6: Final answer
    x = 330,035.22

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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.