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Finding the Fourth Proportional to 706,987.23, 975,637.80 and 384,698.58

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Solution

The fourth proportional to 706,987.23, 975,637.80 and 384,698.58 is: 530,881.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    706,987.23 : 975,637.80 = 384,698.58 : x
  2. Step 2: Convert to fraction form
    706,987.23/975,637.80 = 384,698.58/x
  3. Step 3: Cross multiply
    706,987.23x = 975,637.80 × 384,698.58
  4. Step 4: Simplify right side
    706,987.23x = 375,326,476,254.32
  5. Step 5: Solve for x
    x = 375,326,476,254.32/706,987.23
  6. Step 6: Final answer
    x = 530,881.55

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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.