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Finding the Fourth Proportional to 567,411.93, 783,004.88 and 309,283.20

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Solution

The fourth proportional to 567,411.93, 783,004.88 and 309,283.20 is: 426,797.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    567,411.93 : 783,004.88 = 309,283.20 : x
  2. Step 2: Convert to fraction form
    567,411.93/783,004.88 = 309,283.20/x
  3. Step 3: Cross multiply
    567,411.93x = 783,004.88 × 309,283.20
  4. Step 4: Simplify right side
    567,411.93x = 242,170,255,675.22
  5. Step 5: Solve for x
    x = 242,170,255,675.22/567,411.93
  6. Step 6: Final answer
    x = 426,797.96

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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.