Home / 891,281.36-1,230,125.52-528,905.04

Finding the Fourth Proportional to 891,281.36, 1,230,125.52 and 528,905.04

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Solution

The fourth proportional to 891,281.36, 1,230,125.52 and 528,905.04 is: 729,982.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    891,281.36 : 1,230,125.52 = 528,905.04 : x
  2. Step 2: Convert to fraction form
    891,281.36/1,230,125.52 = 528,905.04/x
  3. Step 3: Cross multiply
    891,281.36x = 1,230,125.52 × 528,905.04
  4. Step 4: Simplify right side
    891,281.36x = 650,619,587,360.62
  5. Step 5: Solve for x
    x = 650,619,587,360.62/891,281.36
  6. Step 6: Final answer
    x = 729,982.27

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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.