Home / 1,185,646.25-1,778,752.47-386,929.28

Finding the Fourth Proportional to 1,185,646.25, 1,778,752.47 and 386,929.28

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Solution

The fourth proportional to 1,185,646.25, 1,778,752.47 and 386,929.28 is: 580,486.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,185,646.25 : 1,778,752.47 = 386,929.28 : x
  2. Step 2: Convert to fraction form
    1,185,646.25/1,778,752.47 = 386,929.28/x
  3. Step 3: Cross multiply
    1,185,646.25x = 1,778,752.47 × 386,929.28
  4. Step 4: Simplify right side
    1,185,646.25x = 688,251,412,515.32
  5. Step 5: Solve for x
    x = 688,251,412,515.32/1,185,646.25
  6. Step 6: Final answer
    x = 580,486.31

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.