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Finding the Fourth Proportional to 1,117,214.04, 1,541,914.86 and 627,235.32

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Solution

The fourth proportional to 1,117,214.04, 1,541,914.86 and 627,235.32 is: 865,674.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,117,214.04 : 1,541,914.86 = 627,235.32 : x
  2. Step 2: Convert to fraction form
    1,117,214.04/1,541,914.86 = 627,235.32/x
  3. Step 3: Cross multiply
    1,117,214.04x = 1,541,914.86 × 627,235.32
  4. Step 4: Simplify right side
    1,117,214.04x = 967,143,460,624.86
  5. Step 5: Solve for x
    x = 967,143,460,624.86/1,117,214.04
  6. Step 6: Final answer
    x = 865,674.28

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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.