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Finding the Fourth Proportional to 997,688.80, 1,497,472.80 and 524,713.60

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Solution

The fourth proportional to 997,688.80, 1,497,472.80 and 524,713.60 is: 787,564.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    997,688.80 : 1,497,472.80 = 524,713.60 : x
  2. Step 2: Convert to fraction form
    997,688.80/1,497,472.80 = 524,713.60/x
  3. Step 3: Cross multiply
    997,688.80x = 1,497,472.80 × 524,713.60
  4. Step 4: Simplify right side
    997,688.80x = 785,744,343,790.08
  5. Step 5: Solve for x
    x = 785,744,343,790.08/997,688.80
  6. Step 6: Final answer
    x = 787,564.56

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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.