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Finding the Fourth Proportional to 572,492.46, 790,008.75 and 317,827.25

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Solution

The fourth proportional to 572,492.46, 790,008.75 and 317,827.25 is: 438,584.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,492.46 : 790,008.75 = 317,827.25 : x
  2. Step 2: Convert to fraction form
    572,492.46/790,008.75 = 317,827.25/x
  3. Step 3: Cross multiply
    572,492.46x = 790,008.75 × 317,827.25
  4. Step 4: Simplify right side
    572,492.46x = 251,086,304,538.39
  5. Step 5: Solve for x
    x = 251,086,304,538.39/572,492.46
  6. Step 6: Final answer
    x = 438,584.47

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Half scale
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Double scale
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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.