Home / 876,436.30-1,314,265.65-403,266.70

Finding the Fourth Proportional to 876,436.30, 1,314,265.65 and 403,266.70

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Solution

The fourth proportional to 876,436.30, 1,314,265.65 and 403,266.70 is: 604,721.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    876,436.30 : 1,314,265.65 = 403,266.70 : x
  2. Step 2: Convert to fraction form
    876,436.30/1,314,265.65 = 403,266.70/x
  3. Step 3: Cross multiply
    876,436.30x = 1,314,265.65 × 403,266.70
  4. Step 4: Simplify right side
    876,436.30x = 529,999,571,598.86
  5. Step 5: Solve for x
    x = 529,999,571,598.86/876,436.30
  6. Step 6: Final answer
    x = 604,721.15

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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.