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Finding the Fourth Proportional to 1,905,366.84, 2,625,781.68 and 1,870,350.90

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Solution

The fourth proportional to 1,905,366.84, 2,625,781.68 and 1,870,350.90 is: 2,577,526.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,905,366.84 : 2,625,781.68 = 1,870,350.90 : x
  2. Step 2: Convert to fraction form
    1,905,366.84/2,625,781.68 = 1,870,350.90/x
  3. Step 3: Cross multiply
    1,905,366.84x = 2,625,781.68 × 1,870,350.90
  4. Step 4: Simplify right side
    1,905,366.84x = 4,911,133,128,391.51
  5. Step 5: Solve for x
    x = 4,911,133,128,391.51/1,905,366.84
  6. Step 6: Final answer
    x = 2,577,526.29

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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.