Home / 808,070.32-1,115,116.54-445,485.80

Finding the Fourth Proportional to 808,070.32, 1,115,116.54 and 445,485.80

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Solution

The fourth proportional to 808,070.32, 1,115,116.54 and 445,485.80 is: 614,759.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    808,070.32 : 1,115,116.54 = 445,485.80 : x
  2. Step 2: Convert to fraction form
    808,070.32/1,115,116.54 = 445,485.80/x
  3. Step 3: Cross multiply
    808,070.32x = 1,115,116.54 × 445,485.80
  4. Step 4: Simplify right side
    808,070.32x = 496,768,583,915.13
  5. Step 5: Solve for x
    x = 496,768,583,915.13/808,070.32
  6. Step 6: Final answer
    x = 614,759.10

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Double scale
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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.