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Finding the Fourth Proportional to 398,789.84, 596,779.58 and 249,100.62

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Solution

The fourth proportional to 398,789.84, 596,779.58 and 249,100.62 is: 372,773.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,789.84 : 596,779.58 = 249,100.62 : x
  2. Step 2: Convert to fraction form
    398,789.84/596,779.58 = 249,100.62/x
  3. Step 3: Cross multiply
    398,789.84x = 596,779.58 × 249,100.62
  4. Step 4: Simplify right side
    398,789.84x = 148,658,163,381.34
  5. Step 5: Solve for x
    x = 148,658,163,381.34/398,789.84
  6. Step 6: Final answer
    x = 372,773.20

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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.