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Finding the Fourth Proportional to 683,330.71, 943,005.42 and 377,406.16

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Solution

The fourth proportional to 683,330.71, 943,005.42 and 377,406.16 is: 520,825.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    683,330.71 : 943,005.42 = 377,406.16 : x
  2. Step 2: Convert to fraction form
    683,330.71/943,005.42 = 377,406.16/x
  3. Step 3: Cross multiply
    683,330.71x = 943,005.42 × 377,406.16
  4. Step 4: Simplify right side
    683,330.71x = 355,896,054,421.39
  5. Step 5: Solve for x
    x = 355,896,054,421.39/683,330.71
  6. Step 6: Final answer
    x = 520,825.49

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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.