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Finding the Fourth Proportional to 571,513.52, 788,733.24 and 316,914.32

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Solution

The fourth proportional to 571,513.52, 788,733.24 and 316,914.32 is: 437,366.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,513.52 : 788,733.24 = 316,914.32 : x
  2. Step 2: Convert to fraction form
    571,513.52/788,733.24 = 316,914.32/x
  3. Step 3: Cross multiply
    571,513.52x = 788,733.24 × 316,914.32
  4. Step 4: Simplify right side
    571,513.52x = 249,960,858,416.00
  5. Step 5: Solve for x
    x = 249,960,858,416.00/571,513.52
  6. Step 6: Final answer
    x = 437,366.48

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Half scale
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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.