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Finding the Fourth Proportional to 719,133.82, 991,985.64 and 460,918.78

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Solution

The fourth proportional to 719,133.82, 991,985.64 and 460,918.78 is: 635,799.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    719,133.82 : 991,985.64 = 460,918.78 : x
  2. Step 2: Convert to fraction form
    719,133.82/991,985.64 = 460,918.78/x
  3. Step 3: Cross multiply
    719,133.82x = 991,985.64 × 460,918.78
  4. Step 4: Simplify right side
    719,133.82x = 457,224,810,966.32
  5. Step 5: Solve for x
    x = 457,224,810,966.32/719,133.82
  6. Step 6: Final answer
    x = 635,799.34

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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.