Home / 824,707.38-1,138,143.38-462,248.36

Finding the Fourth Proportional to 824,707.38, 1,138,143.38 and 462,248.36

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Solution

The fourth proportional to 824,707.38, 1,138,143.38 and 462,248.36 is: 637,929.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    824,707.38 : 1,138,143.38 = 462,248.36 : x
  2. Step 2: Convert to fraction form
    824,707.38/1,138,143.38 = 462,248.36/x
  3. Step 3: Cross multiply
    824,707.38x = 1,138,143.38 × 462,248.36
  4. Step 4: Simplify right side
    824,707.38x = 526,104,904,270.58
  5. Step 5: Solve for x
    x = 526,104,904,270.58/824,707.38
  6. Step 6: Final answer
    x = 637,929.18

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Half scale
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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 (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.