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Finding the Fourth Proportional to 590,075.20, 885,112.80 and 401,118.40

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Solution

The fourth proportional to 590,075.20, 885,112.80 and 401,118.40 is: 601,677.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    590,075.20 : 885,112.80 = 401,118.40 : x
  2. Step 2: Convert to fraction form
    590,075.20/885,112.80 = 401,118.40/x
  3. Step 3: Cross multiply
    590,075.20x = 885,112.80 × 401,118.40
  4. Step 4: Simplify right side
    590,075.20x = 355,035,030,155.52
  5. Step 5: Solve for x
    x = 355,035,030,155.52/590,075.20
  6. Step 6: Final answer
    x = 601,677.60

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Similar ratio
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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.