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Finding the Fourth Proportional to 615,152.20, 922,728.30 and 260,048.20

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Solution

The fourth proportional to 615,152.20, 922,728.30 and 260,048.20 is: 390,072.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,152.20 : 922,728.30 = 260,048.20 : x
  2. Step 2: Convert to fraction form
    615,152.20/922,728.30 = 260,048.20/x
  3. Step 3: Cross multiply
    615,152.20x = 922,728.30 × 260,048.20
  4. Step 4: Simplify right side
    615,152.20x = 239,953,833,504.06
  5. Step 5: Solve for x
    x = 239,953,833,504.06/615,152.20
  6. Step 6: Final answer
    x = 390,072.30

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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.