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Finding the Fourth Proportional to 895,214.40, 1,235,396 and 487,319.34

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Solution

The fourth proportional to 895,214.40, 1,235,396 and 487,319.34 is: 672,500.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    895,214.40 : 1,235,396 = 487,319.34 : x
  2. Step 2: Convert to fraction form
    895,214.40/1,235,396 = 487,319.34/x
  3. Step 3: Cross multiply
    895,214.40x = 1,235,396 × 487,319.34
  4. Step 4: Simplify right side
    895,214.40x = 602,032,363,358.64
  5. Step 5: Solve for x
    x = 602,032,363,358.64/895,214.40
  6. Step 6: Final answer
    x = 672,500.76

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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.