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Finding the Fourth Proportional to 586,329.40, 879,591.30 and 249,531.40

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Solution

The fourth proportional to 586,329.40, 879,591.30 and 249,531.40 is: 374,338.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    586,329.40 : 879,591.30 = 249,531.40 : x
  2. Step 2: Convert to fraction form
    586,329.40/879,591.30 = 249,531.40/x
  3. Step 3: Cross multiply
    586,329.40x = 879,591.30 × 249,531.40
  4. Step 4: Simplify right side
    586,329.40x = 219,485,648,516.82
  5. Step 5: Solve for x
    x = 219,485,648,516.82/586,329.40
  6. Step 6: Final answer
    x = 374,338.47

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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.