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Finding the Fourth Proportional to 669,507.60, 923,927.68 and 367,701.60

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Solution

The fourth proportional to 669,507.60, 923,927.68 and 367,701.60 is: 507,432.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    669,507.60 : 923,927.68 = 367,701.60 : x
  2. Step 2: Convert to fraction form
    669,507.60/923,927.68 = 367,701.60/x
  3. Step 3: Cross multiply
    669,507.60x = 923,927.68 × 367,701.60
  4. Step 4: Simplify right side
    669,507.60x = 339,729,686,220.29
  5. Step 5: Solve for x
    x = 339,729,686,220.29/669,507.60
  6. Step 6: Final answer
    x = 507,432.16

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Half scale
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Double scale
Find fourth proportional to 669,508.60, 923,929.06 and 367,702.60
Similar ratio
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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.