Home / 778,461.66-1,073,322.62-640,157.27

Finding the Fourth Proportional to 778,461.66, 1,073,322.62 and 640,157.27

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Solution

The fourth proportional to 778,461.66, 1,073,322.62 and 640,157.27 is: 882,632.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,461.66 : 1,073,322.62 = 640,157.27 : x
  2. Step 2: Convert to fraction form
    778,461.66/1,073,322.62 = 640,157.27/x
  3. Step 3: Cross multiply
    778,461.66x = 1,073,322.62 × 640,157.27
  4. Step 4: Simplify right side
    778,461.66x = 687,095,269,681.05
  5. Step 5: Solve for x
    x = 687,095,269,681.05/778,461.66
  6. Step 6: Final answer
    x = 882,632.13

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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.