Home / 1,316,903.48-1,975,340.82-319,631.48

Finding the Fourth Proportional to 1,316,903.48, 1,975,340.82 and 319,631.48

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Solution

The fourth proportional to 1,316,903.48, 1,975,340.82 and 319,631.48 is: 479,443.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,316,903.48 : 1,975,340.82 = 319,631.48 : x
  2. Step 2: Convert to fraction form
    1,316,903.48/1,975,340.82 = 319,631.48/x
  3. Step 3: Cross multiply
    1,316,903.48x = 1,975,340.82 × 319,631.48
  4. Step 4: Simplify right side
    1,316,903.48x = 631,381,109,801.01
  5. Step 5: Solve for x
    x = 631,381,109,801.01/1,316,903.48
  6. Step 6: Final answer
    x = 479,443.72

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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.