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Finding the Fourth Proportional to 539,570.72, 744,492.08 and 313,094.72

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Solution

The fourth proportional to 539,570.72, 744,492.08 and 313,094.72 is: 432,003.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,570.72 : 744,492.08 = 313,094.72 : x
  2. Step 2: Convert to fraction form
    539,570.72/744,492.08 = 313,094.72/x
  3. Step 3: Cross multiply
    539,570.72x = 744,492.08 × 313,094.72
  4. Step 4: Simplify right side
    539,570.72x = 233,096,539,329.82
  5. Step 5: Solve for x
    x = 233,096,539,329.82/539,570.72
  6. Step 6: Final answer
    x = 432,003.68

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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.