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Finding the Fourth Proportional to 575,210,287.80, 862,815,431.70 and 479,550,907.80

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Solution

The fourth proportional to 575,210,287.80, 862,815,431.70 and 479,550,907.80 is: 719,326,361.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    575,210,287.80 : 862,815,431.70 = 479,550,907.80 : x
  2. Step 2: Convert to fraction form
    575,210,287.80/862,815,431.70 = 479,550,907.80/x
  3. Step 3: Cross multiply
    575,210,287.80x = 862,815,431.70 × 479,550,907.80
  4. Step 4: Simplify right side
    575,210,287.80x = 413,763,923,535,583,936
  5. Step 5: Solve for x
    x = 413,763,923,535,583,936/575,210,287.80
  6. Step 6: Final answer
    x = 719,326,361.70

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Double scale
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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.