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Finding the Fourth Proportional to 561,925.80, 842,888.70 and 162,579.60

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Solution

The fourth proportional to 561,925.80, 842,888.70 and 162,579.60 is: 243,869.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    561,925.80 : 842,888.70 = 162,579.60 : x
  2. Step 2: Convert to fraction form
    561,925.80/842,888.70 = 162,579.60/x
  3. Step 3: Cross multiply
    561,925.80x = 842,888.70 × 162,579.60
  4. Step 4: Simplify right side
    561,925.80x = 137,036,507,690.52
  5. Step 5: Solve for x
    x = 137,036,507,690.52/561,925.80
  6. Step 6: Final answer
    x = 243,869.40

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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.