Home / 514,823.90-709,669.48-361,431.76

Finding the Fourth Proportional to 514,823.90, 709,669.48 and 361,431.76

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Solution

The fourth proportional to 514,823.90, 709,669.48 and 361,431.76 is: 498,222.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    514,823.90 : 709,669.48 = 361,431.76 : x
  2. Step 2: Convert to fraction form
    514,823.90/709,669.48 = 361,431.76/x
  3. Step 3: Cross multiply
    514,823.90x = 709,669.48 × 361,431.76
  4. Step 4: Simplify right side
    514,823.90x = 256,497,089,174.69
  5. Step 5: Solve for x
    x = 256,497,089,174.69/514,823.90
  6. Step 6: Final answer
    x = 498,222.96

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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.