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Finding the Fourth Proportional to 615,319.70, 922,893.15 and 194,638.10

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Solution

The fourth proportional to 615,319.70, 922,893.15 and 194,638.10 is: 291,929.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,319.70 : 922,893.15 = 194,638.10 : x
  2. Step 2: Convert to fraction form
    615,319.70/922,893.15 = 194,638.10/x
  3. Step 3: Cross multiply
    615,319.70x = 922,893.15 × 194,638.10
  4. Step 4: Simplify right side
    615,319.70x = 179,630,169,219.02
  5. Step 5: Solve for x
    x = 179,630,169,219.02/615,319.70
  6. Step 6: Final answer
    x = 291,929.82

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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.