Home / 879,277.60-1,318,916.40-656,203.60

Finding the Fourth Proportional to 879,277.60, 1,318,916.40 and 656,203.60

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Solution

The fourth proportional to 879,277.60, 1,318,916.40 and 656,203.60 is: 984,305.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    879,277.60 : 1,318,916.40 = 656,203.60 : x
  2. Step 2: Convert to fraction form
    879,277.60/1,318,916.40 = 656,203.60/x
  3. Step 3: Cross multiply
    879,277.60x = 1,318,916.40 × 656,203.60
  4. Step 4: Simplify right side
    879,277.60x = 865,477,689,779.04
  5. Step 5: Solve for x
    x = 865,477,689,779.04/879,277.60
  6. Step 6: Final answer
    x = 984,305.40

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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.