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Finding the Fourth Proportional to 1,358,692.54, 1,874,984.65 and 746,838.80

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Solution

The fourth proportional to 1,358,692.54, 1,874,984.65 and 746,838.80 is: 1,030,631.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,358,692.54 : 1,874,984.65 = 746,838.80 : x
  2. Step 2: Convert to fraction form
    1,358,692.54/1,874,984.65 = 746,838.80/x
  3. Step 3: Cross multiply
    1,358,692.54x = 1,874,984.65 × 746,838.80
  4. Step 4: Simplify right side
    1,358,692.54x = 1,400,311,276,649.50
  5. Step 5: Solve for x
    x = 1,400,311,276,649.50/1,358,692.54
  6. Step 6: Final answer
    x = 1,030,631.46

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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.