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Finding the Fourth Proportional to 900,561.76, 1,242,233.76 and 594,640.96

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Solution

The fourth proportional to 900,561.76, 1,242,233.76 and 594,640.96 is: 820,246.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    900,561.76 : 1,242,233.76 = 594,640.96 : x
  2. Step 2: Convert to fraction form
    900,561.76/1,242,233.76 = 594,640.96/x
  3. Step 3: Cross multiply
    900,561.76x = 1,242,233.76 × 594,640.96
  4. Step 4: Simplify right side
    900,561.76x = 738,683,075,590.81
  5. Step 5: Solve for x
    x = 738,683,075,590.81/900,561.76
  6. Step 6: Final answer
    x = 820,246.99

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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.