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Finding the Fourth Proportional to 546,877.40, 820,316.10 and 503,574.80

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Solution

The fourth proportional to 546,877.40, 820,316.10 and 503,574.80 is: 755,362.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    546,877.40 : 820,316.10 = 503,574.80 : x
  2. Step 2: Convert to fraction form
    546,877.40/820,316.10 = 503,574.80/x
  3. Step 3: Cross multiply
    546,877.40x = 820,316.10 × 503,574.80
  4. Step 4: Simplify right side
    546,877.40x = 413,090,515,994.28
  5. Step 5: Solve for x
    x = 413,090,515,994.28/546,877.40
  6. Step 6: Final answer
    x = 755,362.20

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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.