Home / 926,784.30-1,390,176.45-327,740.70

Finding the Fourth Proportional to 926,784.30, 1,390,176.45 and 327,740.70

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Solution

The fourth proportional to 926,784.30, 1,390,176.45 and 327,740.70 is: 491,611.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    926,784.30 : 1,390,176.45 = 327,740.70 : x
  2. Step 2: Convert to fraction form
    926,784.30/1,390,176.45 = 327,740.70/x
  3. Step 3: Cross multiply
    926,784.30x = 1,390,176.45 × 327,740.70
  4. Step 4: Simplify right side
    926,784.30x = 455,617,402,846.52
  5. Step 5: Solve for x
    x = 455,617,402,846.52/926,784.30
  6. Step 6: Final answer
    x = 491,611.05

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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.