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Finding the Fourth Proportional to 880,920,627.84, 1,215,326,400.48 and 504,375,975.72

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Solution

The fourth proportional to 880,920,627.84, 1,215,326,400.48 and 504,375,975.72 is: 695,841,849.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    880,920,627.84 : 1,215,326,400.48 = 504,375,975.72 : x
  2. Step 2: Convert to fraction form
    880,920,627.84/1,215,326,400.48 = 504,375,975.72/x
  3. Step 3: Cross multiply
    880,920,627.84x = 1,215,326,400.48 × 504,375,975.72
  4. Step 4: Simplify right side
    880,920,627.84x = 612,981,439,060,375,552
  5. Step 5: Solve for x
    x = 612,981,439,060,375,552/880,920,627.84
  6. Step 6: Final answer
    x = 695,841,849.64

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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.