Home / 850,318.56-1,173,395.30-528,021.72

Finding the Fourth Proportional to 850,318.56, 1,173,395.30 and 528,021.72

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Solution

The fourth proportional to 850,318.56, 1,173,395.30 and 528,021.72 is: 728,642.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    850,318.56 : 1,173,395.30 = 528,021.72 : x
  2. Step 2: Convert to fraction form
    850,318.56/1,173,395.30 = 528,021.72/x
  3. Step 3: Cross multiply
    850,318.56x = 1,173,395.30 × 528,021.72
  4. Step 4: Simplify right side
    850,318.56x = 619,578,201,905.81
  5. Step 5: Solve for x
    x = 619,578,201,905.81/850,318.56
  6. Step 6: Final answer
    x = 728,642.45

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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.