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Finding the Fourth Proportional to 1,315,585.94, 1,815,508.58 and 711,973.94

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Solution

The fourth proportional to 1,315,585.94, 1,815,508.58 and 711,973.94 is: 982,524.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,315,585.94 : 1,815,508.58 = 711,973.94 : x
  2. Step 2: Convert to fraction form
    1,315,585.94/1,815,508.58 = 711,973.94/x
  3. Step 3: Cross multiply
    1,315,585.94x = 1,815,508.58 × 711,973.94
  4. Step 4: Simplify right side
    1,315,585.94x = 1,292,594,793,246.54
  5. Step 5: Solve for x
    x = 1,292,594,793,246.54/1,315,585.94
  6. Step 6: Final answer
    x = 982,524.03

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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.