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Finding the Fourth Proportional to 398,783.86, 596,771.55 and 249,094.64

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Solution

The fourth proportional to 398,783.86, 596,771.55 and 249,094.64 is: 372,764.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,783.86 : 596,771.55 = 249,094.64 : x
  2. Step 2: Convert to fraction form
    398,783.86/596,771.55 = 249,094.64/x
  3. Step 3: Cross multiply
    398,783.86x = 596,771.55 × 249,094.64
  4. Step 4: Simplify right side
    398,783.86x = 148,652,595,901.42
  5. Step 5: Solve for x
    x = 148,652,595,901.42/398,783.86
  6. Step 6: Final answer
    x = 372,764.83

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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.