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Finding the Fourth Proportional to 572,722.30, 859,083.45 and 559,600.30

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Solution

The fourth proportional to 572,722.30, 859,083.45 and 559,600.30 is: 839,400.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,722.30 : 859,083.45 = 559,600.30 : x
  2. Step 2: Convert to fraction form
    572,722.30/859,083.45 = 559,600.30/x
  3. Step 3: Cross multiply
    572,722.30x = 859,083.45 × 559,600.30
  4. Step 4: Simplify right side
    572,722.30x = 480,743,356,345.04
  5. Step 5: Solve for x
    x = 480,743,356,345.04/572,722.30
  6. Step 6: Final answer
    x = 839,400.45

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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.