Home / 839,412.36-1,158,390.54-457,439.16

Finding the Fourth Proportional to 839,412.36, 1,158,390.54 and 457,439.16

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Solution

The fourth proportional to 839,412.36, 1,158,390.54 and 457,439.16 is: 631,266.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,412.36 : 1,158,390.54 = 457,439.16 : x
  2. Step 2: Convert to fraction form
    839,412.36/1,158,390.54 = 457,439.16/x
  3. Step 3: Cross multiply
    839,412.36x = 1,158,390.54 × 457,439.16
  4. Step 4: Simplify right side
    839,412.36x = 529,893,195,569.55
  5. Step 5: Solve for x
    x = 529,893,195,569.55/839,412.36
  6. Step 6: Final answer
    x = 631,266.85

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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.