Home / 626,514.40-939,944.40-310,981.60

Finding the Fourth Proportional to 626,514.40, 939,944.40 and 310,981.60

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Solution

The fourth proportional to 626,514.40, 939,944.40 and 310,981.60 is: 466,558.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,514.40 : 939,944.40 = 310,981.60 : x
  2. Step 2: Convert to fraction form
    626,514.40/939,944.40 = 310,981.60/x
  3. Step 3: Cross multiply
    626,514.40x = 939,944.40 × 310,981.60
  4. Step 4: Simplify right side
    626,514.40x = 292,305,413,423.04
  5. Step 5: Solve for x
    x = 292,305,413,423.04/626,514.40
  6. Step 6: Final answer
    x = 466,558.17

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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.