Home / 985,766.86-1,359,731.91-646,256.98

Finding the Fourth Proportional to 985,766.86, 1,359,731.91 and 646,256.98

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Solution

The fourth proportional to 985,766.86, 1,359,731.91 and 646,256.98 is: 891,424.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    985,766.86 : 1,359,731.91 = 646,256.98 : x
  2. Step 2: Convert to fraction form
    985,766.86/1,359,731.91 = 646,256.98/x
  3. Step 3: Cross multiply
    985,766.86x = 1,359,731.91 × 646,256.98
  4. Step 4: Simplify right side
    985,766.86x = 878,736,237,766.23
  5. Step 5: Solve for x
    x = 878,736,237,766.23/985,766.86
  6. Step 6: Final answer
    x = 891,424.00

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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.