Home / 668,899.95-923,369.90-410,818.74

Finding the Fourth Proportional to 668,899.95, 923,369.90 and 410,818.74

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Solution

The fourth proportional to 668,899.95, 923,369.90 and 410,818.74 is: 567,106.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,899.95 : 923,369.90 = 410,818.74 : x
  2. Step 2: Convert to fraction form
    668,899.95/923,369.90 = 410,818.74/x
  3. Step 3: Cross multiply
    668,899.95x = 923,369.90 × 410,818.74
  4. Step 4: Simplify right side
    668,899.95x = 379,337,656,817.83
  5. Step 5: Solve for x
    x = 379,337,656,817.83/668,899.95
  6. Step 6: Final answer
    x = 567,106.72

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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.