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Finding the Fourth Proportional to 592,893.80, 889,923.90 and 293,712.20

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Solution

The fourth proportional to 592,893.80, 889,923.90 and 293,712.20 is: 440,857.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    592,893.80 : 889,923.90 = 293,712.20 : x
  2. Step 2: Convert to fraction form
    592,893.80/889,923.90 = 293,712.20/x
  3. Step 3: Cross multiply
    592,893.80x = 889,923.90 × 293,712.20
  4. Step 4: Simplify right side
    592,893.80x = 261,381,506,501.58
  5. Step 5: Solve for x
    x = 261,381,506,501.58/592,893.80
  6. Step 6: Final answer
    x = 440,857.21

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