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Finding the Fourth Proportional to 911,782.17, 1,257,956.93 and 549,068.22

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Solution

The fourth proportional to 911,782.17, 1,257,956.93 and 549,068.22 is: 757,532.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    911,782.17 : 1,257,956.93 = 549,068.22 : x
  2. Step 2: Convert to fraction form
    911,782.17/1,257,956.93 = 549,068.22/x
  3. Step 3: Cross multiply
    911,782.17x = 1,257,956.93 × 549,068.22
  4. Step 4: Simplify right side
    911,782.17x = 690,704,173,764.44
  5. Step 5: Solve for x
    x = 690,704,173,764.44/911,782.17
  6. Step 6: Final answer
    x = 757,532.00

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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.