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Finding the Fourth Proportional to 540,000.68, 745,196.25 and 298,300.12

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Solution

The fourth proportional to 540,000.68, 745,196.25 and 298,300.12 is: 411,651.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,000.68 : 745,196.25 = 298,300.12 : x
  2. Step 2: Convert to fraction form
    540,000.68/745,196.25 = 298,300.12/x
  3. Step 3: Cross multiply
    540,000.68x = 745,196.25 × 298,300.12
  4. Step 4: Simplify right side
    540,000.68x = 222,292,130,054.19
  5. Step 5: Solve for x
    x = 222,292,130,054.19/540,000.68
  6. Step 6: Final answer
    x = 411,651.58

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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 (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.