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Finding the Fourth Proportional to 360,346,988.40, 540,520,482.60 and 244,705,426.80

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Solution

The fourth proportional to 360,346,988.40, 540,520,482.60 and 244,705,426.80 is: 367,058,140.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    360,346,988.40 : 540,520,482.60 = 244,705,426.80 : x
  2. Step 2: Convert to fraction form
    360,346,988.40/540,520,482.60 = 244,705,426.80/x
  3. Step 3: Cross multiply
    360,346,988.40x = 540,520,482.60 × 244,705,426.80
  4. Step 4: Simplify right side
    360,346,988.40x = 132,268,295,388,774,992
  5. Step 5: Solve for x
    x = 132,268,295,388,774,992/360,346,988.40
  6. Step 6: Final answer
    x = 367,058,140.20

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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.