Home / 657,899.10-987,079.05-284,190.30

Finding the Fourth Proportional to 657,899.10, 987,079.05 and 284,190.30

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Solution

The fourth proportional to 657,899.10, 987,079.05 and 284,190.30 is: 426,384.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,899.10 : 987,079.05 = 284,190.30 : x
  2. Step 2: Convert to fraction form
    657,899.10/987,079.05 = 284,190.30/x
  3. Step 3: Cross multiply
    657,899.10x = 987,079.05 × 284,190.30
  4. Step 4: Simplify right side
    657,899.10x = 280,518,291,343.22
  5. Step 5: Solve for x
    x = 280,518,291,343.22/657,899.10
  6. Step 6: Final answer
    x = 426,384.98

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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.