Home / 1,251,929.93-1,727,665.30-678,970.55

Finding the Fourth Proportional to 1,251,929.93, 1,727,665.30 and 678,970.55

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Solution

The fourth proportional to 1,251,929.93, 1,727,665.30 and 678,970.55 is: 936,980.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,251,929.93 : 1,727,665.30 = 678,970.55 : x
  2. Step 2: Convert to fraction form
    1,251,929.93/1,727,665.30 = 678,970.55/x
  3. Step 3: Cross multiply
    1,251,929.93x = 1,727,665.30 × 678,970.55
  4. Step 4: Simplify right side
    1,251,929.93x = 1,173,033,864,124.79
  5. Step 5: Solve for x
    x = 1,173,033,864,124.79/1,251,929.93
  6. Step 6: Final answer
    x = 936,980.45

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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.