Home / 766,953,619.40-1,150,430,429.10-639,407,779.40

Finding the Fourth Proportional to 766,953,619.40, 1,150,430,429.10 and 639,407,779.40

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Solution

The fourth proportional to 766,953,619.40, 1,150,430,429.10 and 639,407,779.40 is: 959,111,669.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    766,953,619.40 : 1,150,430,429.10 = 639,407,779.40 : x
  2. Step 2: Convert to fraction form
    766,953,619.40/1,150,430,429.10 = 639,407,779.40/x
  3. Step 3: Cross multiply
    766,953,619.40x = 1,150,430,429.10 × 639,407,779.40
  4. Step 4: Simplify right side
    766,953,619.40x = 735,594,166,025,020,032
  5. Step 5: Solve for x
    x = 735,594,166,025,020,032/766,953,619.40
  6. Step 6: Final answer
    x = 959,111,669.10

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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.