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Finding the Fourth Proportional to 614,873.60, 848,590.80 and 360,438.56

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Solution

The fourth proportional to 614,873.60, 848,590.80 and 360,438.56 is: 497,443.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    614,873.60 : 848,590.80 = 360,438.56 : x
  2. Step 2: Convert to fraction form
    614,873.60/848,590.80 = 360,438.56/x
  3. Step 3: Cross multiply
    614,873.60x = 848,590.80 × 360,438.56
  4. Step 4: Simplify right side
    614,873.60x = 305,864,845,981.25
  5. Step 5: Solve for x
    x = 305,864,845,981.25/614,873.60
  6. Step 6: Final answer
    x = 497,443.45

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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.