Home / 384,853.79-531,075.34-212,761.45

Finding the Fourth Proportional to 384,853.79, 531,075.34 and 212,761.45

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Solution

The fourth proportional to 384,853.79, 531,075.34 and 212,761.45 is: 293,598.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,853.79 : 531,075.34 = 212,761.45 : x
  2. Step 2: Convert to fraction form
    384,853.79/531,075.34 = 212,761.45/x
  3. Step 3: Cross multiply
    384,853.79x = 531,075.34 × 212,761.45
  4. Step 4: Simplify right side
    384,853.79x = 112,992,355,678.46
  5. Step 5: Solve for x
    x = 112,992,355,678.46/384,853.79
  6. Step 6: Final answer
    x = 293,598.14

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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.