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Finding the Fourth Proportional to 615,913.22, 923,889.28 and 195,192.74

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Solution

The fourth proportional to 615,913.22, 923,889.28 and 195,192.74 is: 292,795.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,913.22 : 923,889.28 = 195,192.74 : x
  2. Step 2: Convert to fraction form
    615,913.22/923,889.28 = 195,192.74/x
  3. Step 3: Cross multiply
    615,913.22x = 923,889.28 × 195,192.74
  4. Step 4: Simplify right side
    615,913.22x = 180,336,480,019.83
  5. Step 5: Solve for x
    x = 180,336,480,019.83/615,913.22
  6. Step 6: Final answer
    x = 292,795.27

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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.