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Finding the Fourth Proportional to 669,826.13, 924,374.63 and 368,020.13

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Solution

The fourth proportional to 669,826.13, 924,374.63 and 368,020.13 is: 507,875.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    669,826.13 : 924,374.63 = 368,020.13 : x
  2. Step 2: Convert to fraction form
    669,826.13/924,374.63 = 368,020.13/x
  3. Step 3: Cross multiply
    669,826.13x = 924,374.63 × 368,020.13
  4. Step 4: Simplify right side
    669,826.13x = 340,188,467,799.48
  5. Step 5: Solve for x
    x = 340,188,467,799.48/669,826.13
  6. Step 6: Final answer
    x = 507,875.78

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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.