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Finding the Fourth Proportional to 489,075,329.60, 733,612,994.40 and 325,816,654.40

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Solution

The fourth proportional to 489,075,329.60, 733,612,994.40 and 325,816,654.40 is: 488,724,981.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,075,329.60 : 733,612,994.40 = 325,816,654.40 : x
  2. Step 2: Convert to fraction form
    489,075,329.60/733,612,994.40 = 325,816,654.40/x
  3. Step 3: Cross multiply
    489,075,329.60x = 733,612,994.40 × 325,816,654.40
  4. Step 4: Simplify right side
    489,075,329.60x = 239,023,331,459,773,920
  5. Step 5: Solve for x
    x = 239,023,331,459,773,920/489,075,329.60
  6. Step 6: Final answer
    x = 488,724,981.60

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1.5x scale

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.