Home / 1,285,664.32-1,774,097.32-712,655.72

Finding the Fourth Proportional to 1,285,664.32, 1,774,097.32 and 712,655.72

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Solution

The fourth proportional to 1,285,664.32, 1,774,097.32 and 712,655.72 is: 983,398.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,285,664.32 : 1,774,097.32 = 712,655.72 : x
  2. Step 2: Convert to fraction form
    1,285,664.32/1,774,097.32 = 712,655.72/x
  3. Step 3: Cross multiply
    1,285,664.32x = 1,774,097.32 × 712,655.72
  4. Step 4: Simplify right side
    1,285,664.32x = 1,264,320,602,934.67
  5. Step 5: Solve for x
    x = 1,264,320,602,934.67/1,285,664.32
  6. Step 6: Final answer
    x = 983,398.69

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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.