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Finding the Fourth Proportional to 374,427.40, 561,641.10 and 368,897.80

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Solution

The fourth proportional to 374,427.40, 561,641.10 and 368,897.80 is: 553,346.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,427.40 : 561,641.10 = 368,897.80 : x
  2. Step 2: Convert to fraction form
    374,427.40/561,641.10 = 368,897.80/x
  3. Step 3: Cross multiply
    374,427.40x = 561,641.10 × 368,897.80
  4. Step 4: Simplify right side
    374,427.40x = 207,188,166,179.58
  5. Step 5: Solve for x
    x = 207,188,166,179.58/374,427.40
  6. Step 6: Final answer
    x = 553,346.70

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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.