Home / 692,566.20-1,038,897.90-393,190.20

Finding the Fourth Proportional to 692,566.20, 1,038,897.90 and 393,190.20

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Solution

The fourth proportional to 692,566.20, 1,038,897.90 and 393,190.20 is: 589,812.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    692,566.20 : 1,038,897.90 = 393,190.20 : x
  2. Step 2: Convert to fraction form
    692,566.20/1,038,897.90 = 393,190.20/x
  3. Step 3: Cross multiply
    692,566.20x = 1,038,897.90 × 393,190.20
  4. Step 4: Simplify right side
    692,566.20x = 408,484,473,080.58
  5. Step 5: Solve for x
    x = 408,484,473,080.58/692,566.20
  6. Step 6: Final answer
    x = 589,812.89

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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.