Home / 784,974,879.90-1,176,186,861.45-654,878,123.10

Finding the Fourth Proportional to 784,974,879.90, 1,176,186,861.45 and 654,878,123.10

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Solution

The fourth proportional to 784,974,879.90, 1,176,186,861.45 and 654,878,123.10 is: 981,253,112.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    784,974,879.90 : 1,176,186,861.45 = 654,878,123.10 : x
  2. Step 2: Convert to fraction form
    784,974,879.90/1,176,186,861.45 = 654,878,123.10/x
  3. Step 3: Cross multiply
    784,974,879.90x = 1,176,186,861.45 × 654,878,123.10
  4. Step 4: Simplify right side
    784,974,879.90x = 770,259,044,241,255,808
  5. Step 5: Solve for x
    x = 770,259,044,241,255,808/784,974,879.90
  6. Step 6: Final answer
    x = 981,253,112.63

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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.