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Finding the Fourth Proportional to 434,545.70, 651,818.55 and 368,279.60

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Solution

The fourth proportional to 434,545.70, 651,818.55 and 368,279.60 is: 552,419.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    434,545.70 : 651,818.55 = 368,279.60 : x
  2. Step 2: Convert to fraction form
    434,545.70/651,818.55 = 368,279.60/x
  3. Step 3: Cross multiply
    434,545.70x = 651,818.55 × 368,279.60
  4. Step 4: Simplify right side
    434,545.70x = 240,051,474,866.58
  5. Step 5: Solve for x
    x = 240,051,474,866.58/434,545.70
  6. Step 6: Final answer
    x = 552,419.40

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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.