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Finding the Fourth Proportional to 1,865,700.95, 2,798,751.42 and 517,869.25

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Solution

The fourth proportional to 1,865,700.95, 2,798,751.42 and 517,869.25 is: 776,859.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,865,700.95 : 2,798,751.42 = 517,869.25 : x
  2. Step 2: Convert to fraction form
    1,865,700.95/2,798,751.42 = 517,869.25/x
  3. Step 3: Cross multiply
    1,865,700.95x = 2,798,751.42 × 517,869.25
  4. Step 4: Simplify right side
    1,865,700.95x = 1,449,387,291,814.96
  5. Step 5: Solve for x
    x = 1,449,387,291,814.96/1,865,700.95
  6. Step 6: Final answer
    x = 776,859.39

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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.