Home / 761,656.47-1,142,539.83-256,215.25

Finding the Fourth Proportional to 761,656.47, 1,142,539.83 and 256,215.25

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Solution

The fourth proportional to 761,656.47, 1,142,539.83 and 256,215.25 is: 384,341.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    761,656.47 : 1,142,539.83 = 256,215.25 : x
  2. Step 2: Convert to fraction form
    761,656.47/1,142,539.83 = 256,215.25/x
  3. Step 3: Cross multiply
    761,656.47x = 1,142,539.83 × 256,215.25
  4. Step 4: Simplify right side
    761,656.47x = 292,736,129,606.58
  5. Step 5: Solve for x
    x = 292,736,129,606.58/761,656.47
  6. Step 6: Final answer
    x = 384,341.42

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1.5x scale

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.