Home / 612,457.12-845,282.75-440,942.79

Finding the Fourth Proportional to 612,457.12, 845,282.75 and 440,942.79

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Solution

The fourth proportional to 612,457.12, 845,282.75 and 440,942.79 is: 608,567.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,457.12 : 845,282.75 = 440,942.79 : x
  2. Step 2: Convert to fraction form
    612,457.12/845,282.75 = 440,942.79/x
  3. Step 3: Cross multiply
    612,457.12x = 845,282.75 × 440,942.79
  4. Step 4: Simplify right side
    612,457.12x = 372,721,334,123.87
  5. Step 5: Solve for x
    x = 372,721,334,123.87/612,457.12
  6. Step 6: Final answer
    x = 608,567.23

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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.