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Finding the Fourth Proportional to 997,564.16, 1,373,739.08 and 866,681.30

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Solution

The fourth proportional to 997,564.16, 1,373,739.08 and 866,681.30 is: 1,193,501.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    997,564.16 : 1,373,739.08 = 866,681.30 : x
  2. Step 2: Convert to fraction form
    997,564.16/1,373,739.08 = 866,681.30/x
  3. Step 3: Cross multiply
    997,564.16x = 1,373,739.08 × 866,681.30
  4. Step 4: Simplify right side
    997,564.16x = 1,190,593,971,715.20
  5. Step 5: Solve for x
    x = 1,190,593,971,715.20/997,564.16
  6. Step 6: Final answer
    x = 1,193,501.15

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.