Home / 1,111,580.55-1,533,909.92-621,590.42

Finding the Fourth Proportional to 1,111,580.55, 1,533,909.92 and 621,590.42

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Solution

The fourth proportional to 1,111,580.55, 1,533,909.92 and 621,590.42 is: 857,754.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,111,580.55 : 1,533,909.92 = 621,590.42 : x
  2. Step 2: Convert to fraction form
    1,111,580.55/1,533,909.92 = 621,590.42/x
  3. Step 3: Cross multiply
    1,111,580.55x = 1,533,909.92 × 621,590.42
  4. Step 4: Simplify right side
    1,111,580.55x = 953,463,712,141.79
  5. Step 5: Solve for x
    x = 953,463,712,141.79/1,111,580.55
  6. Step 6: Final answer
    x = 857,754.94

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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.