Home / 697,087.60-1,045,631.40-539,429.20

Finding the Fourth Proportional to 697,087.60, 1,045,631.40 and 539,429.20

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Solution

The fourth proportional to 697,087.60, 1,045,631.40 and 539,429.20 is: 809,143.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    697,087.60 : 1,045,631.40 = 539,429.20 : x
  2. Step 2: Convert to fraction form
    697,087.60/1,045,631.40 = 539,429.20/x
  3. Step 3: Cross multiply
    697,087.60x = 1,045,631.40 × 539,429.20
  4. Step 4: Simplify right side
    697,087.60x = 564,044,109,596.88
  5. Step 5: Solve for x
    x = 564,044,109,596.88/697,087.60
  6. Step 6: Final answer
    x = 809,143.80

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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.