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Finding the Fourth Proportional to 539,223.40, 808,835.10 and 437,746.60

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Solution

The fourth proportional to 539,223.40, 808,835.10 and 437,746.60 is: 656,619.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,223.40 : 808,835.10 = 437,746.60 : x
  2. Step 2: Convert to fraction form
    539,223.40/808,835.10 = 437,746.60/x
  3. Step 3: Cross multiply
    539,223.40x = 808,835.10 × 437,746.60
  4. Step 4: Simplify right side
    539,223.40x = 354,064,814,985.66
  5. Step 5: Solve for x
    x = 354,064,814,985.66/539,223.40
  6. Step 6: Final answer
    x = 656,619.90

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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.