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Finding the Fourth Proportional to 410,063.10, 615,094.65 and 372,665.40

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Solution

The fourth proportional to 410,063.10, 615,094.65 and 372,665.40 is: 558,998.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    410,063.10 : 615,094.65 = 372,665.40 : x
  2. Step 2: Convert to fraction form
    410,063.10/615,094.65 = 372,665.40/x
  3. Step 3: Cross multiply
    410,063.10x = 615,094.65 × 372,665.40
  4. Step 4: Simplify right side
    410,063.10x = 229,224,493,780.11
  5. Step 5: Solve for x
    x = 229,224,493,780.11/410,063.10
  6. Step 6: Final answer
    x = 558,998.10

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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.