Home / 1,585,905.40-2,379,117.30-520,658.20

Finding the Fourth Proportional to 1,585,905.40, 2,379,117.30 and 520,658.20

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Solution

The fourth proportional to 1,585,905.40, 2,379,117.30 and 520,658.20 is: 781,072.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,585,905.40 : 2,379,117.30 = 520,658.20 : x
  2. Step 2: Convert to fraction form
    1,585,905.40/2,379,117.30 = 520,658.20/x
  3. Step 3: Cross multiply
    1,585,905.40x = 2,379,117.30 × 520,658.20
  4. Step 4: Simplify right side
    1,585,905.40x = 1,238,706,931,006.86
  5. Step 5: Solve for x
    x = 1,238,706,931,006.86/1,585,905.40
  6. Step 6: Final answer
    x = 781,072.40

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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.