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Finding the Fourth Proportional to 614,987.40, 848,341.44 and 360,289.38

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Solution

The fourth proportional to 614,987.40, 848,341.44 and 360,289.38 is: 496,999.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    614,987.40 : 848,341.44 = 360,289.38 : x
  2. Step 2: Convert to fraction form
    614,987.40/848,341.44 = 360,289.38/x
  3. Step 3: Cross multiply
    614,987.40x = 848,341.44 × 360,289.38
  4. Step 4: Simplify right side
    614,987.40x = 305,648,411,445.91
  5. Step 5: Solve for x
    x = 305,648,411,445.91/614,987.40
  6. Step 6: Final answer
    x = 496,999.47

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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.