Home / 719,544,765.64-992,974,945.58-389,519,904.64

Finding the Fourth Proportional to 719,544,765.64, 992,974,945.58 and 389,519,904.64

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Solution

The fourth proportional to 719,544,765.64, 992,974,945.58 and 389,519,904.64 is: 537,539,183.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    719,544,765.64 : 992,974,945.58 = 389,519,904.64 : x
  2. Step 2: Convert to fraction form
    719,544,765.64/992,974,945.58 = 389,519,904.64/x
  3. Step 3: Cross multiply
    719,544,765.64x = 992,974,945.58 × 389,519,904.64
  4. Step 4: Simplify right side
    719,544,765.64x = 386,783,506,112,230,784
  5. Step 5: Solve for x
    x = 386,783,506,112,230,784/719,544,765.64
  6. Step 6: Final answer
    x = 537,539,183.91

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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.