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Finding the Fourth Proportional to 679,069.32, 937,112.54 and 373,164.72

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Solution

The fourth proportional to 679,069.32, 937,112.54 and 373,164.72 is: 514,965.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,069.32 : 937,112.54 = 373,164.72 : x
  2. Step 2: Convert to fraction form
    679,069.32/937,112.54 = 373,164.72/x
  3. Step 3: Cross multiply
    679,069.32x = 937,112.54 × 373,164.72
  4. Step 4: Simplify right side
    679,069.32x = 349,697,336,731.77
  5. Step 5: Solve for x
    x = 349,697,336,731.77/679,069.32
  6. Step 6: Final answer
    x = 514,965.60

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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.