Home / 1,385,281.74-1,911,670.20-773,443.89

Finding the Fourth Proportional to 1,385,281.74, 1,911,670.20 and 773,443.89

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Solution

The fourth proportional to 1,385,281.74, 1,911,670.20 and 773,443.89 is: 1,067,342.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,385,281.74 : 1,911,670.20 = 773,443.89 : x
  2. Step 2: Convert to fraction form
    1,385,281.74/1,911,670.20 = 773,443.89/x
  3. Step 3: Cross multiply
    1,385,281.74x = 1,911,670.20 × 773,443.89
  4. Step 4: Simplify right side
    1,385,281.74x = 1,478,569,635,885.08
  5. Step 5: Solve for x
    x = 1,478,569,635,885.08/1,385,281.74
  6. Step 6: Final answer
    x = 1,067,342.18

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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.