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Finding the Fourth Proportional to 401,692.74, 553,831.60 and 294,075.94

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Solution

The fourth proportional to 401,692.74, 553,831.60 and 294,075.94 is: 405,455.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,692.74 : 553,831.60 = 294,075.94 : x
  2. Step 2: Convert to fraction form
    401,692.74/553,831.60 = 294,075.94/x
  3. Step 3: Cross multiply
    401,692.74x = 553,831.60 × 294,075.94
  4. Step 4: Simplify right side
    401,692.74x = 162,868,545,602.55
  5. Step 5: Solve for x
    x = 162,868,545,602.55/401,692.74
  6. Step 6: Final answer
    x = 405,455.54

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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.