Home / 879,854.40-1,319,781.60-655,905.60

Finding the Fourth Proportional to 879,854.40, 1,319,781.60 and 655,905.60

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Solution

The fourth proportional to 879,854.40, 1,319,781.60 and 655,905.60 is: 983,858.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    879,854.40 : 1,319,781.60 = 655,905.60 : x
  2. Step 2: Convert to fraction form
    879,854.40/1,319,781.60 = 655,905.60/x
  3. Step 3: Cross multiply
    879,854.40x = 1,319,781.60 × 655,905.60
  4. Step 4: Simplify right side
    879,854.40x = 865,652,142,216.96
  5. Step 5: Solve for x
    x = 865,652,142,216.96/879,854.40
  6. Step 6: Final answer
    x = 983,858.40

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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.