Home / 382,557.30-528,030.45-269,430.90

Finding the Fourth Proportional to 382,557.30, 528,030.45 and 269,430.90

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Solution

The fourth proportional to 382,557.30, 528,030.45 and 269,430.90 is: 371,886.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    382,557.30 : 528,030.45 = 269,430.90 : x
  2. Step 2: Convert to fraction form
    382,557.30/528,030.45 = 269,430.90/x
  3. Step 3: Cross multiply
    382,557.30x = 528,030.45 × 269,430.90
  4. Step 4: Simplify right side
    382,557.30x = 142,267,719,370.91
  5. Step 5: Solve for x
    x = 142,267,719,370.91/382,557.30
  6. Step 6: Final answer
    x = 371,886.04

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1.5x scale

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.