Home / 926,319.20-1,389,478.80-453,927.20

Finding the Fourth Proportional to 926,319.20, 1,389,478.80 and 453,927.20

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Solution

The fourth proportional to 926,319.20, 1,389,478.80 and 453,927.20 is: 680,890.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    926,319.20 : 1,389,478.80 = 453,927.20 : x
  2. Step 2: Convert to fraction form
    926,319.20/1,389,478.80 = 453,927.20/x
  3. Step 3: Cross multiply
    926,319.20x = 1,389,478.80 × 453,927.20
  4. Step 4: Simplify right side
    926,319.20x = 630,722,221,143.36
  5. Step 5: Solve for x
    x = 630,722,221,143.36/926,319.20
  6. Step 6: Final answer
    x = 680,890.80

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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.