Home / 839,460.56-1,158,421.77-457,479.14

Finding the Fourth Proportional to 839,460.56, 1,158,421.77 and 457,479.14

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Solution

The fourth proportional to 839,460.56, 1,158,421.77 and 457,479.14 is: 631,302.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,460.56 : 1,158,421.77 = 457,479.14 : x
  2. Step 2: Convert to fraction form
    839,460.56/1,158,421.77 = 457,479.14/x
  3. Step 3: Cross multiply
    839,460.56x = 1,158,421.77 × 457,479.14
  4. Step 4: Simplify right side
    839,460.56x = 529,953,789,304.77
  5. Step 5: Solve for x
    x = 529,953,789,304.77/839,460.56
  6. Step 6: Final answer
    x = 631,302.79

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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.