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Finding the Fourth Proportional to 895,485.10, 1,343,227.65 and 842,953.90

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Solution

The fourth proportional to 895,485.10, 1,343,227.65 and 842,953.90 is: 1,264,430.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    895,485.10 : 1,343,227.65 = 842,953.90 : x
  2. Step 2: Convert to fraction form
    895,485.10/1,343,227.65 = 842,953.90/x
  3. Step 3: Cross multiply
    895,485.10x = 1,343,227.65 × 842,953.90
  4. Step 4: Simplify right side
    895,485.10x = 1,132,278,986,155.34
  5. Step 5: Solve for x
    x = 1,132,278,986,155.34/895,485.10
  6. Step 6: Final answer
    x = 1,264,430.85

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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.