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Finding the Fourth Proportional to 709,444.16, 977,369.46 and 494,194.76

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Solution

The fourth proportional to 709,444.16, 977,369.46 and 494,194.76 is: 680,830.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    709,444.16 : 977,369.46 = 494,194.76 : x
  2. Step 2: Convert to fraction form
    709,444.16/977,369.46 = 494,194.76/x
  3. Step 3: Cross multiply
    709,444.16x = 977,369.46 × 494,194.76
  4. Step 4: Simplify right side
    709,444.16x = 483,010,865,716.03
  5. Step 5: Solve for x
    x = 483,010,865,716.03/709,444.16
  6. Step 6: Final answer
    x = 680,830.00

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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.