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Finding the Fourth Proportional to 615,090.30, 922,635.45 and 194,495.10

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Solution

The fourth proportional to 615,090.30, 922,635.45 and 194,495.10 is: 291,742.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,090.30 : 922,635.45 = 194,495.10 : x
  2. Step 2: Convert to fraction form
    615,090.30/922,635.45 = 194,495.10/x
  3. Step 3: Cross multiply
    615,090.30x = 922,635.45 × 194,495.10
  4. Step 4: Simplify right side
    615,090.30x = 179,448,074,111.30
  5. Step 5: Solve for x
    x = 179,448,074,111.30/615,090.30
  6. Step 6: Final answer
    x = 291,742.65

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.