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Finding the Fourth Proportional to 310,643.10, 465,308.55 and 310,643.10

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Solution

The fourth proportional to 310,643.10, 465,308.55 and 310,643.10 is: 465,308.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,643.10 : 465,308.55 = 310,643.10 : x
  2. Step 2: Convert to fraction form
    310,643.10/465,308.55 = 310,643.10/x
  3. Step 3: Cross multiply
    310,643.10x = 465,308.55 × 310,643.10
  4. Step 4: Simplify right side
    310,643.10x = 144,544,890,428.51
  5. Step 5: Solve for x
    x = 144,544,890,428.51/310,643.10
  6. Step 6: Final answer
    x = 465,308.55

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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.