Home / 808,515.60-1,213,356.60-453,152.40

Finding the Fourth Proportional to 808,515.60, 1,213,356.60 and 453,152.40

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Solution

The fourth proportional to 808,515.60, 1,213,356.60 and 453,152.40 is: 680,055.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    808,515.60 : 1,213,356.60 = 453,152.40 : x
  2. Step 2: Convert to fraction form
    808,515.60/1,213,356.60 = 453,152.40/x
  3. Step 3: Cross multiply
    808,515.60x = 1,213,356.60 × 453,152.40
  4. Step 4: Simplify right side
    808,515.60x = 549,835,455,345.84
  5. Step 5: Solve for x
    x = 549,835,455,345.84/808,515.60
  6. Step 6: Final answer
    x = 680,055.47

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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.