Home / 696,248.51-961,137.70-438,504.21

Finding the Fourth Proportional to 696,248.51, 961,137.70 and 438,504.21

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Solution

The fourth proportional to 696,248.51, 961,137.70 and 438,504.21 is: 605,334.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    696,248.51 : 961,137.70 = 438,504.21 : x
  2. Step 2: Convert to fraction form
    696,248.51/961,137.70 = 438,504.21/x
  3. Step 3: Cross multiply
    696,248.51x = 961,137.70 × 438,504.21
  4. Step 4: Simplify right side
    696,248.51x = 421,462,926,743.46
  5. Step 5: Solve for x
    x = 421,462,926,743.46/696,248.51
  6. Step 6: Final answer
    x = 605,334.05

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Double scale
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1.5x scale

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.