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Finding the Fourth Proportional to 1,215,803.94, 1,822,721.63 and 506,363.01

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Solution

The fourth proportional to 1,215,803.94, 1,822,721.63 and 506,363.01 is: 759,134.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,215,803.94 : 1,822,721.63 = 506,363.01 : x
  2. Step 2: Convert to fraction form
    1,215,803.94/1,822,721.63 = 506,363.01/x
  3. Step 3: Cross multiply
    1,215,803.94x = 1,822,721.63 × 506,363.01
  4. Step 4: Simplify right side
    1,215,803.94x = 922,958,808,427.09
  5. Step 5: Solve for x
    x = 922,958,808,427.09/1,215,803.94
  6. Step 6: Final answer
    x = 759,134.58

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.