Home / 877,515.20-1,316,272.80-503,230.40

Finding the Fourth Proportional to 877,515.20, 1,316,272.80 and 503,230.40

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Solution

The fourth proportional to 877,515.20, 1,316,272.80 and 503,230.40 is: 754,845.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    877,515.20 : 1,316,272.80 = 503,230.40 : x
  2. Step 2: Convert to fraction form
    877,515.20/1,316,272.80 = 503,230.40/x
  3. Step 3: Cross multiply
    877,515.20x = 1,316,272.80 × 503,230.40
  4. Step 4: Simplify right side
    877,515.20x = 662,388,487,653.12
  5. Step 5: Solve for x
    x = 662,388,487,653.12/877,515.20
  6. Step 6: Final answer
    x = 754,845.60

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Double scale
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Similar ratio
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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.