Home / 710,006,695.86-979,790,443.20-396,743,484

Finding the Fourth Proportional to 710,006,695.86, 979,790,443.20 and 396,743,484

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Solution

The fourth proportional to 710,006,695.86, 979,790,443.20 and 396,743,484 is: 547,495,504.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    710,006,695.86 : 979,790,443.20 = 396,743,484 : x
  2. Step 2: Convert to fraction form
    710,006,695.86/979,790,443.20 = 396,743,484/x
  3. Step 3: Cross multiply
    710,006,695.86x = 979,790,443.20 × 396,743,484
  4. Step 4: Simplify right side
    710,006,695.86x = 388,725,474,025,072,128
  5. Step 5: Solve for x
    x = 388,725,474,025,072,128/710,006,695.86
  6. Step 6: Final answer
    x = 547,495,504.33

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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.