Home / 341,430.15-511,746.45-256,918.66

Finding the Fourth Proportional to 341,430.15, 511,746.45 and 256,918.66

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Solution

The fourth proportional to 341,430.15, 511,746.45 and 256,918.66 is: 385,077.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    341,430.15 : 511,746.45 = 256,918.66 : x
  2. Step 2: Convert to fraction form
    341,430.15/511,746.45 = 256,918.66/x
  3. Step 3: Cross multiply
    341,430.15x = 511,746.45 × 256,918.66
  4. Step 4: Simplify right side
    341,430.15x = 131,477,212,193.76
  5. Step 5: Solve for x
    x = 131,477,212,193.76/341,430.15
  6. Step 6: Final answer
    x = 385,077.92

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1.5x scale

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.