Home / 528,664.50-729,557.74-286,947.12

Finding the Fourth Proportional to 528,664.50, 729,557.74 and 286,947.12

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Solution

The fourth proportional to 528,664.50, 729,557.74 and 286,947.12 is: 395,987.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,664.50 : 729,557.74 = 286,947.12 : x
  2. Step 2: Convert to fraction form
    528,664.50/729,557.74 = 286,947.12/x
  3. Step 3: Cross multiply
    528,664.50x = 729,557.74 × 286,947.12
  4. Step 4: Simplify right side
    528,664.50x = 209,344,492,585.17
  5. Step 5: Solve for x
    x = 209,344,492,585.17/528,664.50
  6. Step 6: Final answer
    x = 395,987.42

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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.