Home / 824,668.40-1,138,590.60-633,339.92

Finding the Fourth Proportional to 824,668.40, 1,138,590.60 and 633,339.92

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Solution

The fourth proportional to 824,668.40, 1,138,590.60 and 633,339.92 is: 874,430.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    824,668.40 : 1,138,590.60 = 633,339.92 : x
  2. Step 2: Convert to fraction form
    824,668.40/1,138,590.60 = 633,339.92/x
  3. Step 3: Cross multiply
    824,668.40x = 1,138,590.60 × 633,339.92
  4. Step 4: Simplify right side
    824,668.40x = 721,114,879,516.75
  5. Step 5: Solve for x
    x = 721,114,879,516.75/824,668.40
  6. Step 6: Final answer
    x = 874,430.11

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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.