Home / 679,888,939.90-1,019,833,409.85-623,201,899.90

Finding the Fourth Proportional to 679,888,939.90, 1,019,833,409.85 and 623,201,899.90

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Solution

The fourth proportional to 679,888,939.90, 1,019,833,409.85 and 623,201,899.90 is: 934,802,849.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,888,939.90 : 1,019,833,409.85 = 623,201,899.90 : x
  2. Step 2: Convert to fraction form
    679,888,939.90/1,019,833,409.85 = 623,201,899.90/x
  3. Step 3: Cross multiply
    679,888,939.90x = 1,019,833,409.85 × 623,201,899.90
  4. Step 4: Simplify right side
    679,888,939.90x = 635,562,118,600,015,360
  5. Step 5: Solve for x
    x = 635,562,118,600,015,360/679,888,939.90
  6. Step 6: Final answer
    x = 934,802,849.85

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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.