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Finding the Fourth Proportional to 616,625.64, 850,968.18 and 358,501.32

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Solution

The fourth proportional to 616,625.64, 850,968.18 and 358,501.32 is: 494,746.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    616,625.64 : 850,968.18 = 358,501.32 : x
  2. Step 2: Convert to fraction form
    616,625.64/850,968.18 = 358,501.32/x
  3. Step 3: Cross multiply
    616,625.64x = 850,968.18 × 358,501.32
  4. Step 4: Simplify right side
    616,625.64x = 305,073,215,808.00
  5. Step 5: Solve for x
    x = 305,073,215,808.00/616,625.64
  6. Step 6: Final answer
    x = 494,746.24

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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.