Home / 1,185,934.28-1,636,577.28-642,055.64

Finding the Fourth Proportional to 1,185,934.28, 1,636,577.28 and 642,055.64

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Solution

The fourth proportional to 1,185,934.28, 1,636,577.28 and 642,055.64 is: 886,030.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,185,934.28 : 1,636,577.28 = 642,055.64 : x
  2. Step 2: Convert to fraction form
    1,185,934.28/1,636,577.28 = 642,055.64/x
  3. Step 3: Cross multiply
    1,185,934.28x = 1,636,577.28 × 642,055.64
  4. Step 4: Simplify right side
    1,185,934.28x = 1,050,773,672,919.86
  5. Step 5: Solve for x
    x = 1,050,773,672,919.86/1,185,934.28
  6. Step 6: Final answer
    x = 886,030.27

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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.