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Finding the Fourth Proportional to 604,341.90, 905,528.70 and 444,909.60

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Solution

The fourth proportional to 604,341.90, 905,528.70 and 444,909.60 is: 666,639.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    604,341.90 : 905,528.70 = 444,909.60 : x
  2. Step 2: Convert to fraction form
    604,341.90/905,528.70 = 444,909.60/x
  3. Step 3: Cross multiply
    604,341.90x = 905,528.70 × 444,909.60
  4. Step 4: Simplify right side
    604,341.90x = 402,878,411,705.52
  5. Step 5: Solve for x
    x = 402,878,411,705.52/604,341.90
  6. Step 6: Final answer
    x = 666,639.88

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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.