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Finding the Fourth Proportional to 1,874,602.64, 2,586,946.51 and 1,015,162.67

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Solution

The fourth proportional to 1,874,602.64, 2,586,946.51 and 1,015,162.67 is: 1,400,921.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,874,602.64 : 2,586,946.51 = 1,015,162.67 : x
  2. Step 2: Convert to fraction form
    1,874,602.64/2,586,946.51 = 1,015,162.67/x
  3. Step 3: Cross multiply
    1,874,602.64x = 2,586,946.51 × 1,015,162.67
  4. Step 4: Simplify right side
    1,874,602.64x = 2,626,171,533,975.10
  5. Step 5: Solve for x
    x = 2,626,171,533,975.10/1,874,602.64
  6. Step 6: Final answer
    x = 1,400,921.71

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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.