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Finding the Fourth Proportional to 713,554.11, 985,221.27 and 459,348.12

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Solution

The fourth proportional to 713,554.11, 985,221.27 and 459,348.12 is: 634,232.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    713,554.11 : 985,221.27 = 459,348.12 : x
  2. Step 2: Convert to fraction form
    713,554.11/985,221.27 = 459,348.12/x
  3. Step 3: Cross multiply
    713,554.11x = 985,221.27 × 459,348.12
  4. Step 4: Simplify right side
    713,554.11x = 452,559,538,158.51
  5. Step 5: Solve for x
    x = 452,559,538,158.51/713,554.11
  6. Step 6: Final answer
    x = 634,232.96

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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.