Home / 909,905.60-1,364,858.40-611,307.20

Finding the Fourth Proportional to 909,905.60, 1,364,858.40 and 611,307.20

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Solution

The fourth proportional to 909,905.60, 1,364,858.40 and 611,307.20 is: 916,960.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    909,905.60 : 1,364,858.40 = 611,307.20 : x
  2. Step 2: Convert to fraction form
    909,905.60/1,364,858.40 = 611,307.20/x
  3. Step 3: Cross multiply
    909,905.60x = 1,364,858.40 × 611,307.20
  4. Step 4: Simplify right side
    909,905.60x = 834,347,766,900.48
  5. Step 5: Solve for x
    x = 834,347,766,900.48/909,905.60
  6. Step 6: Final answer
    x = 916,960.80

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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.