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Finding the Fourth Proportional to 525,888,015.20, 788,832,022.80 and 497,670,466.40

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Solution

The fourth proportional to 525,888,015.20, 788,832,022.80 and 497,670,466.40 is: 746,505,699.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,888,015.20 : 788,832,022.80 = 497,670,466.40 : x
  2. Step 2: Convert to fraction form
    525,888,015.20/788,832,022.80 = 497,670,466.40/x
  3. Step 3: Cross multiply
    525,888,015.20x = 788,832,022.80 × 497,670,466.40
  4. Step 4: Simplify right side
    525,888,015.20x = 392,578,400,698,131,392
  5. Step 5: Solve for x
    x = 392,578,400,698,131,392/525,888,015.20
  6. Step 6: Final answer
    x = 746,505,699.60

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Similar ratio
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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.