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Finding the Fourth Proportional to 813,342.48, 1,122,393.48 and 473,788.80

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Solution

The fourth proportional to 813,342.48, 1,122,393.48 and 473,788.80 is: 653,817.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    813,342.48 : 1,122,393.48 = 473,788.80 : x
  2. Step 2: Convert to fraction form
    813,342.48/1,122,393.48 = 473,788.80/x
  3. Step 3: Cross multiply
    813,342.48x = 1,122,393.48 × 473,788.80
  4. Step 4: Simplify right side
    813,342.48x = 531,777,460,017.02
  5. Step 5: Solve for x
    x = 531,777,460,017.02/813,342.48
  6. Step 6: Final answer
    x = 653,817.39

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Double scale
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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.