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Finding the Fourth Proportional to 748,908.60, 1,123,362.90 and 748,908.60

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Solution

The fourth proportional to 748,908.60, 1,123,362.90 and 748,908.60 is: 1,123,362.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    748,908.60 : 1,123,362.90 = 748,908.60 : x
  2. Step 2: Convert to fraction form
    748,908.60/1,123,362.90 = 748,908.60/x
  3. Step 3: Cross multiply
    748,908.60x = 1,123,362.90 × 748,908.60
  4. Step 4: Simplify right side
    748,908.60x = 841,296,136,730.94
  5. Step 5: Solve for x
    x = 841,296,136,730.94/748,908.60
  6. Step 6: Final answer
    x = 1,123,362.90

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Double scale
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1.5x scale

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.