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Finding the Fourth Proportional to 488,368.40, 732,455.40 and 235,648.40

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Solution

The fourth proportional to 488,368.40, 732,455.40 and 235,648.40 is: 353,425.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,368.40 : 732,455.40 = 235,648.40 : x
  2. Step 2: Convert to fraction form
    488,368.40/732,455.40 = 235,648.40/x
  3. Step 3: Cross multiply
    488,368.40x = 732,455.40 × 235,648.40
  4. Step 4: Simplify right side
    488,368.40x = 172,601,943,081.36
  5. Step 5: Solve for x
    x = 172,601,943,081.36/488,368.40
  6. Step 6: Final answer
    x = 353,425.70

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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.