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Finding the Fourth Proportional to 530,880.40, 732,765.48 and 349,724.56

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Solution

The fourth proportional to 530,880.40, 732,765.48 and 349,724.56 is: 482,719.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    530,880.40 : 732,765.48 = 349,724.56 : x
  2. Step 2: Convert to fraction form
    530,880.40/732,765.48 = 349,724.56/x
  3. Step 3: Cross multiply
    530,880.40x = 732,765.48 × 349,724.56
  4. Step 4: Simplify right side
    530,880.40x = 256,266,085,076.19
  5. Step 5: Solve for x
    x = 256,266,085,076.19/530,880.40
  6. Step 6: Final answer
    x = 482,719.06

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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.