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Finding the Fourth Proportional to 402,692.40, 604,038.60 and 362,602.80

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Solution

The fourth proportional to 402,692.40, 604,038.60 and 362,602.80 is: 543,904.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,692.40 : 604,038.60 = 362,602.80 : x
  2. Step 2: Convert to fraction form
    402,692.40/604,038.60 = 362,602.80/x
  3. Step 3: Cross multiply
    402,692.40x = 604,038.60 × 362,602.80
  4. Step 4: Simplify right side
    402,692.40x = 219,026,087,668.08
  5. Step 5: Solve for x
    x = 219,026,087,668.08/402,692.40
  6. Step 6: Final answer
    x = 543,904.20

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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.