Home / 419,554,536.96-578,779,470.72-280,359,471.36

Finding the Fourth Proportional to 419,554,536.96, 578,779,470.72 and 280,359,471.36

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Solution

The fourth proportional to 419,554,536.96, 578,779,470.72 and 280,359,471.36 is: 386,758,554.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,554,536.96 : 578,779,470.72 = 280,359,471.36 : x
  2. Step 2: Convert to fraction form
    419,554,536.96/578,779,470.72 = 280,359,471.36/x
  3. Step 3: Cross multiply
    419,554,536.96x = 578,779,470.72 × 280,359,471.36
  4. Step 4: Simplify right side
    419,554,536.96x = 162,266,306,445,079,808
  5. Step 5: Solve for x
    x = 162,266,306,445,079,808/419,554,536.96
  6. Step 6: Final answer
    x = 386,758,554.97

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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.