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Finding the Fourth Proportional to 719,004, 989,893.44 and 565,772.16

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Solution

The fourth proportional to 719,004, 989,893.44 and 565,772.16 is: 778,930.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    719,004 : 989,893.44 = 565,772.16 : x
  2. Step 2: Convert to fraction form
    719,004/989,893.44 = 565,772.16/x
  3. Step 3: Cross multiply
    719,004x = 989,893.44 × 565,772.16
  4. Step 4: Simplify right side
    719,004x = 560,054,149,718.63
  5. Step 5: Solve for x
    x = 560,054,149,718.63/719,004
  6. Step 6: Final answer
    x = 778,930.51

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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.