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Finding the Fourth Proportional to 540,744.30, 811,116.45 and 470,760.30

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Solution

The fourth proportional to 540,744.30, 811,116.45 and 470,760.30 is: 706,140.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,744.30 : 811,116.45 = 470,760.30 : x
  2. Step 2: Convert to fraction form
    540,744.30/811,116.45 = 470,760.30/x
  3. Step 3: Cross multiply
    540,744.30x = 811,116.45 × 470,760.30
  4. Step 4: Simplify right side
    540,744.30x = 381,841,423,336.94
  5. Step 5: Solve for x
    x = 381,841,423,336.94/540,744.30
  6. Step 6: Final answer
    x = 706,140.45

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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.