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Finding the Fourth Proportional to 468,259.74, 646,193.16 and 253,395.90

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Solution

The fourth proportional to 468,259.74, 646,193.16 and 253,395.90 is: 349,683.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    468,259.74 : 646,193.16 = 253,395.90 : x
  2. Step 2: Convert to fraction form
    468,259.74/646,193.16 = 253,395.90/x
  3. Step 3: Cross multiply
    468,259.74x = 646,193.16 × 253,395.90
  4. Step 4: Simplify right side
    468,259.74x = 163,742,697,352.04
  5. Step 5: Solve for x
    x = 163,742,697,352.04/468,259.74
  6. Step 6: Final answer
    x = 349,683.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.