Home / 559,964.30-839,946.45-307,147.10

Finding the Fourth Proportional to 559,964.30, 839,946.45 and 307,147.10

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Solution

The fourth proportional to 559,964.30, 839,946.45 and 307,147.10 is: 460,720.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,964.30 : 839,946.45 = 307,147.10 : x
  2. Step 2: Convert to fraction form
    559,964.30/839,946.45 = 307,147.10/x
  3. Step 3: Cross multiply
    559,964.30x = 839,946.45 × 307,147.10
  4. Step 4: Simplify right side
    559,964.30x = 257,987,116,272.80
  5. Step 5: Solve for x
    x = 257,987,116,272.80/559,964.30
  6. Step 6: Final answer
    x = 460,720.65

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Double scale
Find fourth proportional to 559,965.30, 839,947.95 and 307,148.10
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.