Home / 684,012.96-943,921.36-373,901.76

Finding the Fourth Proportional to 684,012.96, 943,921.36 and 373,901.76

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Solution

The fourth proportional to 684,012.96, 943,921.36 and 373,901.76 is: 515,975.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    684,012.96 : 943,921.36 = 373,901.76 : x
  2. Step 2: Convert to fraction form
    684,012.96/943,921.36 = 373,901.76/x
  3. Step 3: Cross multiply
    684,012.96x = 943,921.36 × 373,901.76
  4. Step 4: Simplify right side
    684,012.96x = 352,933,857,805.59
  5. Step 5: Solve for x
    x = 352,933,857,805.59/684,012.96
  6. Step 6: Final answer
    x = 515,975.40

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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.