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Finding the Fourth Proportional to 698,668.84, 1,048,224.68 and 249,379.76

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Solution

The fourth proportional to 698,668.84, 1,048,224.68 and 249,379.76 is: 374,148.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    698,668.84 : 1,048,224.68 = 249,379.76 : x
  2. Step 2: Convert to fraction form
    698,668.84/1,048,224.68 = 249,379.76/x
  3. Step 3: Cross multiply
    698,668.84x = 1,048,224.68 × 249,379.76
  4. Step 4: Simplify right side
    698,668.84x = 261,406,019,124.48
  5. Step 5: Solve for x
    x = 261,406,019,124.48/698,668.84
  6. Step 6: Final answer
    x = 374,148.67

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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.