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Finding the Fourth Proportional to 917,201.64, 1,374,752.70 and 355,755

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Solution

The fourth proportional to 917,201.64, 1,374,752.70 and 355,755 is: 533,225.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    917,201.64 : 1,374,752.70 = 355,755 : x
  2. Step 2: Convert to fraction form
    917,201.64/1,374,752.70 = 355,755/x
  3. Step 3: Cross multiply
    917,201.64x = 1,374,752.70 × 355,755
  4. Step 4: Simplify right side
    917,201.64x = 489,075,146,788.50
  5. Step 5: Solve for x
    x = 489,075,146,788.50/917,201.64
  6. Step 6: Final answer
    x = 533,225.33

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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.