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Finding the Fourth Proportional to 539,070, 744,155.72 and 348,176.48

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Solution

The fourth proportional to 539,070, 744,155.72 and 348,176.48 is: 480,637.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,070 : 744,155.72 = 348,176.48 : x
  2. Step 2: Convert to fraction form
    539,070/744,155.72 = 348,176.48/x
  3. Step 3: Cross multiply
    539,070x = 744,155.72 × 348,176.48
  4. Step 4: Simplify right side
    539,070x = 259,097,519,161.47
  5. Step 5: Solve for x
    x = 259,097,519,161.47/539,070
  6. Step 6: Final answer
    x = 480,637.99

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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.