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Finding the Fourth Proportional to 742,209.45, 1,041,192.75 and 742,209.45

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Solution

The fourth proportional to 742,209.45, 1,041,192.75 and 742,209.45 is: 1,041,192.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    742,209.45 : 1,041,192.75 = 742,209.45 : x
  2. Step 2: Convert to fraction form
    742,209.45/1,041,192.75 = 742,209.45/x
  3. Step 3: Cross multiply
    742,209.45x = 1,041,192.75 × 742,209.45
  4. Step 4: Simplify right side
    742,209.45x = 772,783,098,321.49
  5. Step 5: Solve for x
    x = 772,783,098,321.49/742,209.45
  6. Step 6: Final answer
    x = 1,041,192.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.