Home / 838,454.90-1,157,066.18-456,480.77

Finding the Fourth Proportional to 838,454.90, 1,157,066.18 and 456,480.77

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Solution

The fourth proportional to 838,454.90, 1,157,066.18 and 456,480.77 is: 629,942.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    838,454.90 : 1,157,066.18 = 456,480.77 : x
  2. Step 2: Convert to fraction form
    838,454.90/1,157,066.18 = 456,480.77/x
  3. Step 3: Cross multiply
    838,454.90x = 1,157,066.18 × 456,480.77
  4. Step 4: Simplify right side
    838,454.90x = 528,178,460,787.36
  5. Step 5: Solve for x
    x = 528,178,460,787.36/838,454.90
  6. Step 6: Final answer
    x = 629,942.60

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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.