Home / 409,916.48-565,947.95-257,164.11

Finding the Fourth Proportional to 409,916.48, 565,947.95 and 257,164.11

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Solution

The fourth proportional to 409,916.48, 565,947.95 and 257,164.11 is: 355,051.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    409,916.48 : 565,947.95 = 257,164.11 : x
  2. Step 2: Convert to fraction form
    409,916.48/565,947.95 = 257,164.11/x
  3. Step 3: Cross multiply
    409,916.48x = 565,947.95 × 257,164.11
  4. Step 4: Simplify right side
    409,916.48x = 145,541,499,582.25
  5. Step 5: Solve for x
    x = 145,541,499,582.25/409,916.48
  6. Step 6: Final answer
    x = 355,051.60

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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.