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Finding the Fourth Proportional to 528,266.56, 728,830.56 and 301,751.68

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Solution

The fourth proportional to 528,266.56, 728,830.56 and 301,751.68 is: 416,316.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,266.56 : 728,830.56 = 301,751.68 : x
  2. Step 2: Convert to fraction form
    528,266.56/728,830.56 = 301,751.68/x
  3. Step 3: Cross multiply
    528,266.56x = 728,830.56 × 301,751.68
  4. Step 4: Simplify right side
    528,266.56x = 219,925,845,915.34
  5. Step 5: Solve for x
    x = 219,925,845,915.34/528,266.56
  6. Step 6: Final answer
    x = 416,316.05

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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.