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Finding the Fourth Proportional to 702,962.07, 970,088.18 and 380,672.52

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Solution

The fourth proportional to 702,962.07, 970,088.18 and 380,672.52 is: 525,328.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    702,962.07 : 970,088.18 = 380,672.52 : x
  2. Step 2: Convert to fraction form
    702,962.07/970,088.18 = 380,672.52/x
  3. Step 3: Cross multiply
    702,962.07x = 970,088.18 × 380,672.52
  4. Step 4: Simplify right side
    702,962.07x = 369,285,910,199.45
  5. Step 5: Solve for x
    x = 369,285,910,199.45/702,962.07
  6. Step 6: Final answer
    x = 525,328.36

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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.