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Finding the Fourth Proportional to 583,263.40, 874,895.10 and 189,279.40

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Solution

The fourth proportional to 583,263.40, 874,895.10 and 189,279.40 is: 283,919.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    583,263.40 : 874,895.10 = 189,279.40 : x
  2. Step 2: Convert to fraction form
    583,263.40/874,895.10 = 189,279.40/x
  3. Step 3: Cross multiply
    583,263.40x = 874,895.10 × 189,279.40
  4. Step 4: Simplify right side
    583,263.40x = 165,599,619,590.94
  5. Step 5: Solve for x
    x = 165,599,619,590.94/583,263.40
  6. Step 6: Final answer
    x = 283,919.10

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Half scale
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Double scale
Find fourth proportional to 583,264.40, 874,896.60 and 189,280.40
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.