Home / 691,258.60-1,036,887.90-644,602.60

Finding the Fourth Proportional to 691,258.60, 1,036,887.90 and 644,602.60

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Solution

The fourth proportional to 691,258.60, 1,036,887.90 and 644,602.60 is: 966,903.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    691,258.60 : 1,036,887.90 = 644,602.60 : x
  2. Step 2: Convert to fraction form
    691,258.60/1,036,887.90 = 644,602.60/x
  3. Step 3: Cross multiply
    691,258.60x = 1,036,887.90 × 644,602.60
  4. Step 4: Simplify right side
    691,258.60x = 668,380,636,248.54
  5. Step 5: Solve for x
    x = 668,380,636,248.54/691,258.60
  6. Step 6: Final answer
    x = 966,903.90

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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.