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Finding the Fourth Proportional to 531,875.60, 797,813.40 and 405,904.40

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Solution

The fourth proportional to 531,875.60, 797,813.40 and 405,904.40 is: 608,856.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    531,875.60 : 797,813.40 = 405,904.40 : x
  2. Step 2: Convert to fraction form
    531,875.60/797,813.40 = 405,904.40/x
  3. Step 3: Cross multiply
    531,875.60x = 797,813.40 × 405,904.40
  4. Step 4: Simplify right side
    531,875.60x = 323,835,969,438.96
  5. Step 5: Solve for x
    x = 323,835,969,438.96/531,875.60
  6. Step 6: Final answer
    x = 608,856.60

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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.