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Finding the Fourth Proportional to 356,543.60, 534,815.40 and 146,332.40

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Solution

The fourth proportional to 356,543.60, 534,815.40 and 146,332.40 is: 219,498.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,543.60 : 534,815.40 = 146,332.40 : x
  2. Step 2: Convert to fraction form
    356,543.60/534,815.40 = 146,332.40/x
  3. Step 3: Cross multiply
    356,543.60x = 534,815.40 × 146,332.40
  4. Step 4: Simplify right side
    356,543.60x = 78,260,821,038.96
  5. Step 5: Solve for x
    x = 78,260,821,038.96/356,543.60
  6. Step 6: Final answer
    x = 219,498.60

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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.