Home / 812,354,774.04-1,121,038,085.43-459,921,604.86

Finding the Fourth Proportional to 812,354,774.04, 1,121,038,085.43 and 459,921,604.86

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Solution

The fourth proportional to 812,354,774.04, 1,121,038,085.43 and 459,921,604.86 is: 634,685,302.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    812,354,774.04 : 1,121,038,085.43 = 459,921,604.86 : x
  2. Step 2: Convert to fraction form
    812,354,774.04/1,121,038,085.43 = 459,921,604.86/x
  3. Step 3: Cross multiply
    812,354,774.04x = 1,121,038,085.43 × 459,921,604.86
  4. Step 4: Simplify right side
    812,354,774.04x = 515,589,635,360,147,456
  5. Step 5: Solve for x
    x = 515,589,635,360,147,456/812,354,774.04
  6. Step 6: Final answer
    x = 634,685,302.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.