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Finding the Fourth Proportional to 607,042.60, 911,312.70 and 382,402.60

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Solution

The fourth proportional to 607,042.60, 911,312.70 and 382,402.60 is: 574,075.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    607,042.60 : 911,312.70 = 382,402.60 : x
  2. Step 2: Convert to fraction form
    607,042.60/911,312.70 = 382,402.60/x
  3. Step 3: Cross multiply
    607,042.60x = 911,312.70 × 382,402.60
  4. Step 4: Simplify right side
    607,042.60x = 348,488,345,893.02
  5. Step 5: Solve for x
    x = 348,488,345,893.02/607,042.60
  6. Step 6: Final answer
    x = 574,075.60

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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.