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Finding the Fourth Proportional to 356,748.32, 492,334.80 and 197,772.32

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Solution

The fourth proportional to 356,748.32, 492,334.80 and 197,772.32 is: 272,938.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,748.32 : 492,334.80 = 197,772.32 : x
  2. Step 2: Convert to fraction form
    356,748.32/492,334.80 = 197,772.32/x
  3. Step 3: Cross multiply
    356,748.32x = 492,334.80 × 197,772.32
  4. Step 4: Simplify right side
    356,748.32x = 97,370,195,612.74
  5. Step 5: Solve for x
    x = 97,370,195,612.74/356,748.32
  6. Step 6: Final answer
    x = 272,938.06

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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.