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Finding the Fourth Proportional to 419,161.02, 578,352.51 and 249,361.98

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Solution

The fourth proportional to 419,161.02, 578,352.51 and 249,361.98 is: 344,066.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,161.02 : 578,352.51 = 249,361.98 : x
  2. Step 2: Convert to fraction form
    419,161.02/578,352.51 = 249,361.98/x
  3. Step 3: Cross multiply
    419,161.02x = 578,352.51 × 249,361.98
  4. Step 4: Simplify right side
    419,161.02x = 144,219,127,031.57
  5. Step 5: Solve for x
    x = 144,219,127,031.57/419,161.02
  6. Step 6: Final answer
    x = 344,066.17

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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.