Home / 929,665.04-1,282,883.86-521,728.79

Finding the Fourth Proportional to 929,665.04, 1,282,883.86 and 521,728.79

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Solution

The fourth proportional to 929,665.04, 1,282,883.86 and 521,728.79 is: 719,955.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    929,665.04 : 1,282,883.86 = 521,728.79 : x
  2. Step 2: Convert to fraction form
    929,665.04/1,282,883.86 = 521,728.79/x
  3. Step 3: Cross multiply
    929,665.04x = 1,282,883.86 × 521,728.79
  4. Step 4: Simplify right side
    929,665.04x = 669,317,447,847.70
  5. Step 5: Solve for x
    x = 669,317,447,847.70/929,665.04
  6. Step 6: Final answer
    x = 719,955.49

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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.