Home / 709,441.79-977,366.18-494,192.39

Finding the Fourth Proportional to 709,441.79, 977,366.18 and 494,192.39

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Solution

The fourth proportional to 709,441.79, 977,366.18 and 494,192.39 is: 680,826.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    709,441.79 : 977,366.18 = 494,192.39 : x
  2. Step 2: Convert to fraction form
    709,441.79/977,366.18 = 494,192.39/x
  3. Step 3: Cross multiply
    709,441.79x = 977,366.18 × 494,192.39
  4. Step 4: Simplify right side
    709,441.79x = 483,006,924,748.02
  5. Step 5: Solve for x
    x = 483,006,924,748.02/709,441.79
  6. Step 6: Final answer
    x = 680,826.72

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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.