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Finding the Fourth Proportional to 774,618.76, 1,069,073.94 and 435,087

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Solution

The fourth proportional to 774,618.76, 1,069,073.94 and 435,087 is: 600,476.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    774,618.76 : 1,069,073.94 = 435,087 : x
  2. Step 2: Convert to fraction form
    774,618.76/1,069,073.94 = 435,087/x
  3. Step 3: Cross multiply
    774,618.76x = 1,069,073.94 × 435,087
  4. Step 4: Simplify right side
    774,618.76x = 465,140,173,332.78
  5. Step 5: Solve for x
    x = 465,140,173,332.78/774,618.76
  6. Step 6: Final answer
    x = 600,476.26

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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.