Home / 780,115.30-1,076,560.58-435,951.23

Finding the Fourth Proportional to 780,115.30, 1,076,560.58 and 435,951.23

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Solution

The fourth proportional to 780,115.30, 1,076,560.58 and 435,951.23 is: 601,613.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,115.30 : 1,076,560.58 = 435,951.23 : x
  2. Step 2: Convert to fraction form
    780,115.30/1,076,560.58 = 435,951.23/x
  3. Step 3: Cross multiply
    780,115.30x = 1,076,560.58 × 435,951.23
  4. Step 4: Simplify right side
    780,115.30x = 469,327,909,020.51
  5. Step 5: Solve for x
    x = 469,327,909,020.51/780,115.30
  6. Step 6: Final answer
    x = 601,613.52

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1.5x scale

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.