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Finding the Fourth Proportional to 575,807.40, 863,711.10 and 386,850.60

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Solution

The fourth proportional to 575,807.40, 863,711.10 and 386,850.60 is: 580,275.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    575,807.40 : 863,711.10 = 386,850.60 : x
  2. Step 2: Convert to fraction form
    575,807.40/863,711.10 = 386,850.60/x
  3. Step 3: Cross multiply
    575,807.40x = 863,711.10 × 386,850.60
  4. Step 4: Simplify right side
    575,807.40x = 334,127,157,261.66
  5. Step 5: Solve for x
    x = 334,127,157,261.66/575,807.40
  6. Step 6: Final answer
    x = 580,275.90

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Double scale
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Similar ratio
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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.