Home / 589,112.10-883,668.15-289,638.90

Finding the Fourth Proportional to 589,112.10, 883,668.15 and 289,638.90

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Solution

The fourth proportional to 589,112.10, 883,668.15 and 289,638.90 is: 434,458.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    589,112.10 : 883,668.15 = 289,638.90 : x
  2. Step 2: Convert to fraction form
    589,112.10/883,668.15 = 289,638.90/x
  3. Step 3: Cross multiply
    589,112.10x = 883,668.15 × 289,638.90
  4. Step 4: Simplify right side
    589,112.10x = 255,944,670,931.04
  5. Step 5: Solve for x
    x = 255,944,670,931.04/589,112.10
  6. Step 6: Final answer
    x = 434,458.35

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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.