Home / 517,968,139.70-776,952,209.55-514,944,830.90

Finding the Fourth Proportional to 517,968,139.70, 776,952,209.55 and 514,944,830.90

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Solution

The fourth proportional to 517,968,139.70, 776,952,209.55 and 514,944,830.90 is: 772,417,246.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    517,968,139.70 : 776,952,209.55 = 514,944,830.90 : x
  2. Step 2: Convert to fraction form
    517,968,139.70/776,952,209.55 = 514,944,830.90/x
  3. Step 3: Cross multiply
    517,968,139.70x = 776,952,209.55 × 514,944,830.90
  4. Step 4: Simplify right side
    517,968,139.70x = 400,087,524,164,106,048
  5. Step 5: Solve for x
    x = 400,087,524,164,106,048/517,968,139.70
  6. Step 6: Final answer
    x = 772,417,246.35

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Double scale
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Similar ratio
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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.