Home / 528,669.63-729,544.53-286,947.03

Finding the Fourth Proportional to 528,669.63, 729,544.53 and 286,947.03

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Solution

The fourth proportional to 528,669.63, 729,544.53 and 286,947.03 is: 395,976.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,669.63 : 729,544.53 = 286,947.03 : x
  2. Step 2: Convert to fraction form
    528,669.63/729,544.53 = 286,947.03/x
  3. Step 3: Cross multiply
    528,669.63x = 729,544.53 × 286,947.03
  4. Step 4: Simplify right side
    528,669.63x = 209,340,636,136.25
  5. Step 5: Solve for x
    x = 209,340,636,136.25/528,669.63
  6. Step 6: Final answer
    x = 395,976.29

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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.