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Finding the Fourth Proportional to 575,191.46, 793,729.34 and 317,057.12

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Solution

The fourth proportional to 575,191.46, 793,729.34 and 317,057.12 is: 437,519.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    575,191.46 : 793,729.34 = 317,057.12 : x
  2. Step 2: Convert to fraction form
    575,191.46/793,729.34 = 317,057.12/x
  3. Step 3: Cross multiply
    575,191.46x = 793,729.34 × 317,057.12
  4. Step 4: Simplify right side
    575,191.46x = 251,657,538,599.90
  5. Step 5: Solve for x
    x = 251,657,538,599.90/575,191.46
  6. Step 6: Final answer
    x = 437,519.60

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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.