Home / 909,905.10-1,364,857.65-611,306.70

Finding the Fourth Proportional to 909,905.10, 1,364,857.65 and 611,306.70

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Solution

The fourth proportional to 909,905.10, 1,364,857.65 and 611,306.70 is: 916,960.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    909,905.10 : 1,364,857.65 = 611,306.70 : x
  2. Step 2: Convert to fraction form
    909,905.10/1,364,857.65 = 611,306.70/x
  3. Step 3: Cross multiply
    909,905.10x = 1,364,857.65 × 611,306.70
  4. Step 4: Simplify right side
    909,905.10x = 834,346,625,991.26
  5. Step 5: Solve for x
    x = 834,346,625,991.26/909,905.10
  6. Step 6: Final answer
    x = 916,960.05

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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.