Home / 529,835.40-792,938.70-319,624.20

Finding the Fourth Proportional to 529,835.40, 792,938.70 and 319,624.20

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Solution

The fourth proportional to 529,835.40, 792,938.70 and 319,624.20 is: 478,341.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,835.40 : 792,938.70 = 319,624.20 : x
  2. Step 2: Convert to fraction form
    529,835.40/792,938.70 = 319,624.20/x
  3. Step 3: Cross multiply
    529,835.40x = 792,938.70 × 319,624.20
  4. Step 4: Simplify right side
    529,835.40x = 253,442,397,636.54
  5. Step 5: Solve for x
    x = 253,442,397,636.54/529,835.40
  6. Step 6: Final answer
    x = 478,341.76

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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.