Home / 1,207,779.60-1,666,756.55-663,938.31

Finding the Fourth Proportional to 1,207,779.60, 1,666,756.55 and 663,938.31

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Solution

The fourth proportional to 1,207,779.60, 1,666,756.55 and 663,938.31 is: 916,246.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,207,779.60 : 1,666,756.55 = 663,938.31 : x
  2. Step 2: Convert to fraction form
    1,207,779.60/1,666,756.55 = 663,938.31/x
  3. Step 3: Cross multiply
    1,207,779.60x = 1,666,756.55 × 663,938.31
  4. Step 4: Simplify right side
    1,207,779.60x = 1,106,623,515,334.96
  5. Step 5: Solve for x
    x = 1,106,623,515,334.96/1,207,779.60
  6. Step 6: Final answer
    x = 916,246.24

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.