Home / 926,331.30-1,389,626.55-393,848.10

Finding the Fourth Proportional to 926,331.30, 1,389,626.55 and 393,848.10

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Solution

The fourth proportional to 926,331.30, 1,389,626.55 and 393,848.10 is: 590,827.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    926,331.30 : 1,389,626.55 = 393,848.10 : x
  2. Step 2: Convert to fraction form
    926,331.30/1,389,626.55 = 393,848.10/x
  3. Step 3: Cross multiply
    926,331.30x = 1,389,626.55 × 393,848.10
  4. Step 4: Simplify right side
    926,331.30x = 547,301,776,427.06
  5. Step 5: Solve for x
    x = 547,301,776,427.06/926,331.30
  6. Step 6: Final answer
    x = 590,827.25

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Double scale
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Similar ratio
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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.