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Finding the Fourth Proportional to 615,630.60, 923,445.90 and 194,939.40

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Solution

The fourth proportional to 615,630.60, 923,445.90 and 194,939.40 is: 292,409.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,630.60 : 923,445.90 = 194,939.40 : x
  2. Step 2: Convert to fraction form
    615,630.60/923,445.90 = 194,939.40/x
  3. Step 3: Cross multiply
    615,630.60x = 923,445.90 × 194,939.40
  4. Step 4: Simplify right side
    615,630.60x = 180,015,989,678.46
  5. Step 5: Solve for x
    x = 180,015,989,678.46/615,630.60
  6. Step 6: Final answer
    x = 292,409.10

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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.