Home / 1,185,924.15-1,636,588.53-642,071.79

Finding the Fourth Proportional to 1,185,924.15, 1,636,588.53 and 642,071.79

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Solution

The fourth proportional to 1,185,924.15, 1,636,588.53 and 642,071.79 is: 886,066.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,185,924.15 : 1,636,588.53 = 642,071.79 : x
  2. Step 2: Convert to fraction form
    1,185,924.15/1,636,588.53 = 642,071.79/x
  3. Step 3: Cross multiply
    1,185,924.15x = 1,636,588.53 × 642,071.79
  4. Step 4: Simplify right side
    1,185,924.15x = 1,050,807,326,950.57
  5. Step 5: Solve for x
    x = 1,050,807,326,950.57/1,185,924.15
  6. Step 6: Final answer
    x = 886,066.22

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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.