Home / 528,664.32-729,557.42-286,946.87

Finding the Fourth Proportional to 528,664.32, 729,557.42 and 286,946.87

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Solution

The fourth proportional to 528,664.32, 729,557.42 and 286,946.87 is: 395,987.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,664.32 : 729,557.42 = 286,946.87 : x
  2. Step 2: Convert to fraction form
    528,664.32/729,557.42 = 286,946.87/x
  3. Step 3: Cross multiply
    528,664.32x = 729,557.42 × 286,946.87
  4. Step 4: Simplify right side
    528,664.32x = 209,344,213,071.75
  5. Step 5: Solve for x
    x = 209,344,213,071.75/528,664.32
  6. Step 6: Final answer
    x = 395,987.03

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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.