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Finding the Fourth Proportional to 707,230.95, 975,978.55 and 384,943.25

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Solution

The fourth proportional to 707,230.95, 975,978.55 and 384,943.25 is: 531,221.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    707,230.95 : 975,978.55 = 384,943.25 : x
  2. Step 2: Convert to fraction form
    707,230.95/975,978.55 = 384,943.25/x
  3. Step 3: Cross multiply
    707,230.95x = 975,978.55 × 384,943.25
  4. Step 4: Simplify right side
    707,230.95x = 375,696,354,967.29
  5. Step 5: Solve for x
    x = 375,696,354,967.29/707,230.95
  6. Step 6: Final answer
    x = 531,221.60

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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.