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Finding the Fourth Proportional to 619,897.32, 929,845.98 and 245,920.32

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Solution

The fourth proportional to 619,897.32, 929,845.98 and 245,920.32 is: 368,880.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,897.32 : 929,845.98 = 245,920.32 : x
  2. Step 2: Convert to fraction form
    619,897.32/929,845.98 = 245,920.32/x
  3. Step 3: Cross multiply
    619,897.32x = 929,845.98 × 245,920.32
  4. Step 4: Simplify right side
    619,897.32x = 228,668,020,952.31
  5. Step 5: Solve for x
    x = 228,668,020,952.31/619,897.32
  6. Step 6: Final answer
    x = 368,880.48

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Double scale
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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.