Home / 782,586,536.87-1,079,954,892.10-430,154,993.36

Finding the Fourth Proportional to 782,586,536.87, 1,079,954,892.10 and 430,154,993.36

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Solution

The fourth proportional to 782,586,536.87, 1,079,954,892.10 and 430,154,993.36 is: 593,605,904.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    782,586,536.87 : 1,079,954,892.10 = 430,154,993.36 : x
  2. Step 2: Convert to fraction form
    782,586,536.87/1,079,954,892.10 = 430,154,993.36/x
  3. Step 3: Cross multiply
    782,586,536.87x = 1,079,954,892.10 × 430,154,993.36
  4. Step 4: Simplify right side
    782,586,536.87x = 464,547,989,440,374,976
  5. Step 5: Solve for x
    x = 464,547,989,440,374,976/782,586,536.87
  6. Step 6: Final answer
    x = 593,605,904.98

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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.