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Finding the Fourth Proportional to 404,718.10, 607,077.15 and 286,522.90

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Solution

The fourth proportional to 404,718.10, 607,077.15 and 286,522.90 is: 429,784.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,718.10 : 607,077.15 = 286,522.90 : x
  2. Step 2: Convert to fraction form
    404,718.10/607,077.15 = 286,522.90/x
  3. Step 3: Cross multiply
    404,718.10x = 607,077.15 × 286,522.90
  4. Step 4: Simplify right side
    404,718.10x = 173,941,505,541.74
  5. Step 5: Solve for x
    x = 173,941,505,541.74/404,718.10
  6. Step 6: Final answer
    x = 429,784.35

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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.