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Finding the Fourth Proportional to 310,215.90, 464,339.70 and 310,215.90

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Solution

The fourth proportional to 310,215.90, 464,339.70 and 310,215.90 is: 464,339.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,215.90 : 464,339.70 = 310,215.90 : x
  2. Step 2: Convert to fraction form
    310,215.90/464,339.70 = 310,215.90/x
  3. Step 3: Cross multiply
    310,215.90x = 464,339.70 × 310,215.90
  4. Step 4: Simplify right side
    310,215.90x = 144,045,557,941.23
  5. Step 5: Solve for x
    x = 144,045,557,941.23/310,215.90
  6. Step 6: Final answer
    x = 464,339.70

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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.