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Finding the Fourth Proportional to 1,000,191,980.07, 1,380,264,932.52 and 560,158,832.07

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Solution

The fourth proportional to 1,000,191,980.07, 1,380,264,932.52 and 560,158,832.07 is: 773,019,188.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,000,191,980.07 : 1,380,264,932.52 = 560,158,832.07 : x
  2. Step 2: Convert to fraction form
    1,000,191,980.07/1,380,264,932.52 = 560,158,832.07/x
  3. Step 3: Cross multiply
    1,000,191,980.07x = 1,380,264,932.52 × 560,158,832.07
  4. Step 4: Simplify right side
    1,000,191,980.07x = 773,167,592,547,580,672
  5. Step 5: Solve for x
    x = 773,167,592,547,580,672/1,000,191,980.07
  6. Step 6: Final answer
    x = 773,019,188.27

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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.