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Finding the Fourth Proportional to 453,313.60, 679,970.40 and 157,825.60

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Solution

The fourth proportional to 453,313.60, 679,970.40 and 157,825.60 is: 236,738.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,313.60 : 679,970.40 = 157,825.60 : x
  2. Step 2: Convert to fraction form
    453,313.60/679,970.40 = 157,825.60/x
  3. Step 3: Cross multiply
    453,313.60x = 679,970.40 × 157,825.60
  4. Step 4: Simplify right side
    453,313.60x = 107,316,736,362.24
  5. Step 5: Solve for x
    x = 107,316,736,362.24/453,313.60
  6. Step 6: Final answer
    x = 236,738.40

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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.