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Finding the Fourth Proportional to 623,366.38, 860,245.80 and 355,094.38

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Solution

The fourth proportional to 623,366.38, 860,245.80 and 355,094.38 is: 490,030.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    623,366.38 : 860,245.80 = 355,094.38 : x
  2. Step 2: Convert to fraction form
    623,366.38/860,245.80 = 355,094.38/x
  3. Step 3: Cross multiply
    623,366.38x = 860,245.80 × 355,094.38
  4. Step 4: Simplify right side
    623,366.38x = 305,468,444,697.38
  5. Step 5: Solve for x
    x = 305,468,444,697.38/623,366.38
  6. Step 6: Final answer
    x = 490,030.35

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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.