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Finding the Fourth Proportional to 571,542.75, 788,548.95 and 356,807.16

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Solution

The fourth proportional to 571,542.75, 788,548.95 and 356,807.16 is: 492,281.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,542.75 : 788,548.95 = 356,807.16 : x
  2. Step 2: Convert to fraction form
    571,542.75/788,548.95 = 356,807.16/x
  3. Step 3: Cross multiply
    571,542.75x = 788,548.95 × 356,807.16
  4. Step 4: Simplify right side
    571,542.75x = 281,359,911,370.48
  5. Step 5: Solve for x
    x = 281,359,911,370.48/571,542.75
  6. Step 6: Final answer
    x = 492,281.48

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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.