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Finding the Fourth Proportional to 473,675.80, 710,513.70 and 399,026.20

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Solution

The fourth proportional to 473,675.80, 710,513.70 and 399,026.20 is: 598,539.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    473,675.80 : 710,513.70 = 399,026.20 : x
  2. Step 2: Convert to fraction form
    473,675.80/710,513.70 = 399,026.20/x
  3. Step 3: Cross multiply
    473,675.80x = 710,513.70 × 399,026.20
  4. Step 4: Simplify right side
    473,675.80x = 283,513,581,758.94
  5. Step 5: Solve for x
    x = 283,513,581,758.94/473,675.80
  6. Step 6: Final answer
    x = 598,539.30

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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 (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.