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Finding the Fourth Proportional to 302,595.60, 453,893.40 and 208,117.20

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Solution

The fourth proportional to 302,595.60, 453,893.40 and 208,117.20 is: 312,175.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,595.60 : 453,893.40 = 208,117.20 : x
  2. Step 2: Convert to fraction form
    302,595.60/453,893.40 = 208,117.20/x
  3. Step 3: Cross multiply
    302,595.60x = 453,893.40 × 208,117.20
  4. Step 4: Simplify right side
    302,595.60x = 94,463,023,506.48
  5. Step 5: Solve for x
    x = 94,463,023,506.48/302,595.60
  6. Step 6: Final answer
    x = 312,175.80

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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.