Home / 869,735.28-1,200,365.88-530,400.36

Finding the Fourth Proportional to 869,735.28, 1,200,365.88 and 530,400.36

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Solution

The fourth proportional to 869,735.28, 1,200,365.88 and 530,400.36 is: 732,032.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    869,735.28 : 1,200,365.88 = 530,400.36 : x
  2. Step 2: Convert to fraction form
    869,735.28/1,200,365.88 = 530,400.36/x
  3. Step 3: Cross multiply
    869,735.28x = 1,200,365.88 × 530,400.36
  4. Step 4: Simplify right side
    869,735.28x = 636,674,494,883.72
  5. Step 5: Solve for x
    x = 636,674,494,883.72/869,735.28
  6. Step 6: Final answer
    x = 732,032.50

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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.