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Finding the Fourth Proportional to 627,030.60, 939,962.70 and 437,490.60

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Solution

The fourth proportional to 627,030.60, 939,962.70 and 437,490.60 is: 655,828.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,030.60 : 939,962.70 = 437,490.60 : x
  2. Step 2: Convert to fraction form
    627,030.60/939,962.70 = 437,490.60/x
  3. Step 3: Cross multiply
    627,030.60x = 939,962.70 × 437,490.60
  4. Step 4: Simplify right side
    627,030.60x = 411,224,845,600.62
  5. Step 5: Solve for x
    x = 411,224,845,600.62/627,030.60
  6. Step 6: Final answer
    x = 655,828.99

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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.