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Finding the Fourth Proportional to 829,897.60, 1,244,673.60 and 356,598.40

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Solution

The fourth proportional to 829,897.60, 1,244,673.60 and 356,598.40 is: 534,823.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    829,897.60 : 1,244,673.60 = 356,598.40 : x
  2. Step 2: Convert to fraction form
    829,897.60/1,244,673.60 = 356,598.40/x
  3. Step 3: Cross multiply
    829,897.60x = 1,244,673.60 × 356,598.40
  4. Step 4: Simplify right side
    829,897.60x = 443,848,614,282.24
  5. Step 5: Solve for x
    x = 443,848,614,282.24/829,897.60
  6. Step 6: Final answer
    x = 534,823.35

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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.