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Finding the Fourth Proportional to 559,851.40, 839,777.10 and 516,111.40

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Solution

The fourth proportional to 559,851.40, 839,777.10 and 516,111.40 is: 774,167.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,851.40 : 839,777.10 = 516,111.40 : x
  2. Step 2: Convert to fraction form
    559,851.40/839,777.10 = 516,111.40/x
  3. Step 3: Cross multiply
    559,851.40x = 839,777.10 × 516,111.40
  4. Step 4: Simplify right side
    559,851.40x = 433,418,534,768.94
  5. Step 5: Solve for x
    x = 433,418,534,768.94/559,851.40
  6. Step 6: Final answer
    x = 774,167.10

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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.