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Finding the Fourth Proportional to 625,698.94, 930,499.38 and 605,769.70

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Solution

The fourth proportional to 625,698.94, 930,499.38 and 605,769.70 is: 900,861.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,698.94 : 930,499.38 = 605,769.70 : x
  2. Step 2: Convert to fraction form
    625,698.94/930,499.38 = 605,769.70/x
  3. Step 3: Cross multiply
    625,698.94x = 930,499.38 × 605,769.70
  4. Step 4: Simplify right side
    625,698.94x = 563,668,330,272.79
  5. Step 5: Solve for x
    x = 563,668,330,272.79/625,698.94
  6. Step 6: Final answer
    x = 900,861.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.