Home / 520,378,819,998.70-779,644,778,088.95-217,523,810,227.20

Finding the Fourth Proportional to 520,378,819,998.70, 779,644,778,088.95 and 217,523,810,227.20

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Solution

The fourth proportional to 520,378,819,998.70, 779,644,778,088.95 and 217,523,810,227.20 is: 325,899,702,747.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,378,819,998.70 : 779,644,778,088.95 = 217,523,810,227.20 : x
  2. Step 2: Convert to fraction form
    520,378,819,998.70/779,644,778,088.95 = 217,523,810,227.20/x
  3. Step 3: Cross multiply
    520,378,819,998.70x = 779,644,778,088.95 × 217,523,810,227.20
  4. Step 4: Simplify right side
    520,378,819,998.70x = 169,591,302,753,648,218,472,448
  5. Step 5: Solve for x
    x = 169,591,302,753,648,218,472,448/520,378,819,998.70
  6. Step 6: Final answer
    x = 325,899,702,747.46

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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.