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Finding the Fourth Proportional to 403,465.70, 556,784.25 and 242,323.49

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Solution

The fourth proportional to 403,465.70, 556,784.25 and 242,323.49 is: 334,407.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,465.70 : 556,784.25 = 242,323.49 : x
  2. Step 2: Convert to fraction form
    403,465.70/556,784.25 = 242,323.49/x
  3. Step 3: Cross multiply
    403,465.70x = 556,784.25 × 242,323.49
  4. Step 4: Simplify right side
    403,465.70x = 134,921,903,120.28
  5. Step 5: Solve for x
    x = 134,921,903,120.28/403,465.70
  6. Step 6: Final answer
    x = 334,407.37

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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.