Home / 523,623.40-784,916.70-257,165.80

Finding the Fourth Proportional to 523,623.40, 784,916.70 and 257,165.80

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Solution

The fourth proportional to 523,623.40, 784,916.70 and 257,165.80 is: 385,494.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    523,623.40 : 784,916.70 = 257,165.80 : x
  2. Step 2: Convert to fraction form
    523,623.40/784,916.70 = 257,165.80/x
  3. Step 3: Cross multiply
    523,623.40x = 784,916.70 × 257,165.80
  4. Step 4: Simplify right side
    523,623.40x = 201,853,731,088.86
  5. Step 5: Solve for x
    x = 201,853,731,088.86/523,623.40
  6. Step 6: Final answer
    x = 385,494.10

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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.