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Finding the Fourth Proportional to 528,593.67, 729,459.25 and 286,876.24

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Solution

The fourth proportional to 528,593.67, 729,459.25 and 286,876.24 is: 395,889.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,593.67 : 729,459.25 = 286,876.24 : x
  2. Step 2: Convert to fraction form
    528,593.67/729,459.25 = 286,876.24/x
  3. Step 3: Cross multiply
    528,593.67x = 729,459.25 × 286,876.24
  4. Step 4: Simplify right side
    528,593.67x = 209,264,526,873.22
  5. Step 5: Solve for x
    x = 209,264,526,873.22/528,593.67
  6. Step 6: Final answer
    x = 395,889.20

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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.