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Finding the Fourth Proportional to 895,636.16, 1,234,672.12 and 680,402.60

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Solution

The fourth proportional to 895,636.16, 1,234,672.12 and 680,402.60 is: 937,963.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    895,636.16 : 1,234,672.12 = 680,402.60 : x
  2. Step 2: Convert to fraction form
    895,636.16/1,234,672.12 = 680,402.60/x
  3. Step 3: Cross multiply
    895,636.16x = 1,234,672.12 × 680,402.60
  4. Step 4: Simplify right side
    895,636.16x = 840,074,120,595.51
  5. Step 5: Solve for x
    x = 840,074,120,595.51/895,636.16
  6. Step 6: Final answer
    x = 937,963.60

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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.