Home / 708,660.54-977,938.38-386,373.42

Finding the Fourth Proportional to 708,660.54, 977,938.38 and 386,373.42

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Solution

The fourth proportional to 708,660.54, 977,938.38 and 386,373.42 is: 533,188.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    708,660.54 : 977,938.38 = 386,373.42 : x
  2. Step 2: Convert to fraction form
    708,660.54/977,938.38 = 386,373.42/x
  3. Step 3: Cross multiply
    708,660.54x = 977,938.38 × 386,373.42
  4. Step 4: Simplify right side
    708,660.54x = 377,849,396,429.86
  5. Step 5: Solve for x
    x = 377,849,396,429.86/708,660.54
  6. Step 6: Final answer
    x = 533,188.14

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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.