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Finding the Fourth Proportional to 385,367.60, 578,051.40 and 104,884.40

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Solution

The fourth proportional to 385,367.60, 578,051.40 and 104,884.40 is: 157,326.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,367.60 : 578,051.40 = 104,884.40 : x
  2. Step 2: Convert to fraction form
    385,367.60/578,051.40 = 104,884.40/x
  3. Step 3: Cross multiply
    385,367.60x = 578,051.40 × 104,884.40
  4. Step 4: Simplify right side
    385,367.60x = 60,628,574,258.16
  5. Step 5: Solve for x
    x = 60,628,574,258.16/385,367.60
  6. Step 6: Final answer
    x = 157,326.60

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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.