Home / 517,969,123.20-776,953,684.80-514,945,814.40

Finding the Fourth Proportional to 517,969,123.20, 776,953,684.80 and 514,945,814.40

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Solution

The fourth proportional to 517,969,123.20, 776,953,684.80 and 514,945,814.40 is: 772,418,721.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    517,969,123.20 : 776,953,684.80 = 514,945,814.40 : x
  2. Step 2: Convert to fraction form
    517,969,123.20/776,953,684.80 = 514,945,814.40/x
  3. Step 3: Cross multiply
    517,969,123.20x = 776,953,684.80 × 514,945,814.40
  4. Step 4: Simplify right side
    517,969,123.20x = 400,089,047,970,416,832
  5. Step 5: Solve for x
    x = 400,089,047,970,416,832/517,969,123.20
  6. Step 6: Final answer
    x = 772,418,721.60

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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.