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Finding the Fourth Proportional to 1,047,626, 1,445,655.84 and 617,807.60

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Solution

The fourth proportional to 1,047,626, 1,445,655.84 and 617,807.60 is: 852,534.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,047,626 : 1,445,655.84 = 617,807.60 : x
  2. Step 2: Convert to fraction form
    1,047,626/1,445,655.84 = 617,807.60/x
  3. Step 3: Cross multiply
    1,047,626x = 1,445,655.84 × 617,807.60
  4. Step 4: Simplify right side
    1,047,626x = 893,137,164,936.38
  5. Step 5: Solve for x
    x = 893,137,164,936.38/1,047,626
  6. Step 6: Final answer
    x = 852,534.36

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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.