Home / 780,065.60-1,076,469.91-435,904.36

Finding the Fourth Proportional to 780,065.60, 1,076,469.91 and 435,904.36

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Solution

The fourth proportional to 780,065.60, 1,076,469.91 and 435,904.36 is: 601,536.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,065.60 : 1,076,469.91 = 435,904.36 : x
  2. Step 2: Convert to fraction form
    780,065.60/1,076,469.91 = 435,904.36/x
  3. Step 3: Cross multiply
    780,065.60x = 1,076,469.91 × 435,904.36
  4. Step 4: Simplify right side
    780,065.60x = 469,237,927,177.81
  5. Step 5: Solve for x
    x = 469,237,927,177.81/780,065.60
  6. Step 6: Final answer
    x = 601,536.50

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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.