Home / 683,449.65-943,141.32-377,520.35

Finding the Fourth Proportional to 683,449.65, 943,141.32 and 377,520.35

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Solution

The fourth proportional to 683,449.65, 943,141.32 and 377,520.35 is: 520,967.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    683,449.65 : 943,141.32 = 377,520.35 : x
  2. Step 2: Convert to fraction form
    683,449.65/943,141.32 = 377,520.35/x
  3. Step 3: Cross multiply
    683,449.65x = 943,141.32 × 377,520.35
  4. Step 4: Simplify right side
    683,449.65x = 356,055,036,510.16
  5. Step 5: Solve for x
    x = 356,055,036,510.16/683,449.65
  6. Step 6: Final answer
    x = 520,967.47

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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.