Home / 708,358.57-977,555.59-386,089.54

Finding the Fourth Proportional to 708,358.57, 977,555.59 and 386,089.54

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Solution

The fourth proportional to 708,358.57, 977,555.59 and 386,089.54 is: 532,814.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    708,358.57 : 977,555.59 = 386,089.54 : x
  2. Step 2: Convert to fraction form
    708,358.57/977,555.59 = 386,089.54/x
  3. Step 3: Cross multiply
    708,358.57x = 977,555.59 × 386,089.54
  4. Step 4: Simplify right side
    708,358.57x = 377,423,984,658.42
  5. Step 5: Solve for x
    x = 377,423,984,658.42/708,358.57
  6. Step 6: Final answer
    x = 532,814.88

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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.