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Finding the Fourth Proportional to 398,813.44, 596,815.68 and 249,124.16

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Solution

The fourth proportional to 398,813.44, 596,815.68 and 249,124.16 is: 372,808.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,813.44 : 596,815.68 = 249,124.16 : x
  2. Step 2: Convert to fraction form
    398,813.44/596,815.68 = 249,124.16/x
  3. Step 3: Cross multiply
    398,813.44x = 596,815.68 × 249,124.16
  4. Step 4: Simplify right side
    398,813.44x = 148,681,204,954.83
  5. Step 5: Solve for x
    x = 148,681,204,954.83/398,813.44
  6. Step 6: Final answer
    x = 372,808.91

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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.