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Finding the Fourth Proportional to 680,892.96, 939,154.32 and 590,089.44

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Solution

The fourth proportional to 680,892.96, 939,154.32 and 590,089.44 is: 813,909.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,892.96 : 939,154.32 = 590,089.44 : x
  2. Step 2: Convert to fraction form
    680,892.96/939,154.32 = 590,089.44/x
  3. Step 3: Cross multiply
    680,892.96x = 939,154.32 × 590,089.44
  4. Step 4: Simplify right side
    680,892.96x = 554,185,046,762.38
  5. Step 5: Solve for x
    x = 554,185,046,762.38/680,892.96
  6. Step 6: Final answer
    x = 813,909.20

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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.