Home / 514,904.20-772,356.30-293,720.20

Finding the Fourth Proportional to 514,904.20, 772,356.30 and 293,720.20

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Solution

The fourth proportional to 514,904.20, 772,356.30 and 293,720.20 is: 440,580.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    514,904.20 : 772,356.30 = 293,720.20 : x
  2. Step 2: Convert to fraction form
    514,904.20/772,356.30 = 293,720.20/x
  3. Step 3: Cross multiply
    514,904.20x = 772,356.30 × 293,720.20
  4. Step 4: Simplify right side
    514,904.20x = 226,856,646,907.26
  5. Step 5: Solve for x
    x = 226,856,646,907.26/514,904.20
  6. Step 6: Final answer
    x = 440,580.30

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Double scale
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Similar ratio
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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.