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Finding the Fourth Proportional to 950,800.65, 1,311,521.93 and 776,623.98

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Solution

The fourth proportional to 950,800.65, 1,311,521.93 and 776,623.98 is: 1,071,264.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    950,800.65 : 1,311,521.93 = 776,623.98 : x
  2. Step 2: Convert to fraction form
    950,800.65/1,311,521.93 = 776,623.98/x
  3. Step 3: Cross multiply
    950,800.65x = 1,311,521.93 × 776,623.98
  4. Step 4: Simplify right side
    950,800.65x = 1,018,559,385,081.31
  5. Step 5: Solve for x
    x = 1,018,559,385,081.31/950,800.65
  6. Step 6: Final answer
    x = 1,071,264.93

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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.