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Finding the Fourth Proportional to 266,075.51, 398,901.34 and 153,628.17

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Solution

The fourth proportional to 266,075.51, 398,901.34 and 153,628.17 is: 230,319.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,075.51 : 398,901.34 = 153,628.17 : x
  2. Step 2: Convert to fraction form
    266,075.51/398,901.34 = 153,628.17/x
  3. Step 3: Cross multiply
    266,075.51x = 398,901.34 × 153,628.17
  4. Step 4: Simplify right side
    266,075.51x = 61,282,481,570.90
  5. Step 5: Solve for x
    x = 61,282,481,570.90/266,075.51
  6. Step 6: Final answer
    x = 230,319.89

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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.