Home / 651,423.45-977,142.47-272,401.77

Finding the Fourth Proportional to 651,423.45, 977,142.47 and 272,401.77

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Solution

The fourth proportional to 651,423.45, 977,142.47 and 272,401.77 is: 408,605.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    651,423.45 : 977,142.47 = 272,401.77 : x
  2. Step 2: Convert to fraction form
    651,423.45/977,142.47 = 272,401.77/x
  3. Step 3: Cross multiply
    651,423.45x = 977,142.47 × 272,401.77
  4. Step 4: Simplify right side
    651,423.45x = 266,175,337,008.16
  5. Step 5: Solve for x
    x = 266,175,337,008.16/651,423.45
  6. Step 6: Final answer
    x = 408,605.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.