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Finding the Fourth Proportional to 1,294,719.02, 1,786,818.66 and 714,055.74

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Solution

The fourth proportional to 1,294,719.02, 1,786,818.66 and 714,055.74 is: 985,455.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,294,719.02 : 1,786,818.66 = 714,055.74 : x
  2. Step 2: Convert to fraction form
    1,294,719.02/1,786,818.66 = 714,055.74/x
  3. Step 3: Cross multiply
    1,294,719.02x = 1,786,818.66 × 714,055.74
  4. Step 4: Simplify right side
    1,294,719.02x = 1,275,888,126,210.11
  5. Step 5: Solve for x
    x = 1,275,888,126,210.11/1,294,719.02
  6. Step 6: Final answer
    x = 985,455.61

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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.