Home / 708,423.78-977,625.41-386,127.39

Finding the Fourth Proportional to 708,423.78, 977,625.41 and 386,127.39

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Solution

The fourth proportional to 708,423.78, 977,625.41 and 386,127.39 is: 532,856.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    708,423.78 : 977,625.41 = 386,127.39 : x
  2. Step 2: Convert to fraction form
    708,423.78/977,625.41 = 386,127.39/x
  3. Step 3: Cross multiply
    708,423.78x = 977,625.41 × 386,127.39
  4. Step 4: Simplify right side
    708,423.78x = 377,487,946,030.34
  5. Step 5: Solve for x
    x = 377,487,946,030.34/708,423.78
  6. Step 6: Final answer
    x = 532,856.12

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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.