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Finding the Fourth Proportional to 895,805.64, 1,236,211.83 and 493,397.64

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Solution

The fourth proportional to 895,805.64, 1,236,211.83 and 493,397.64 is: 680,888.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    895,805.64 : 1,236,211.83 = 493,397.64 : x
  2. Step 2: Convert to fraction form
    895,805.64/1,236,211.83 = 493,397.64/x
  3. Step 3: Cross multiply
    895,805.64x = 1,236,211.83 × 493,397.64
  4. Step 4: Simplify right side
    895,805.64x = 609,943,999,462.08
  5. Step 5: Solve for x
    x = 609,943,999,462.08/895,805.64
  6. Step 6: Final answer
    x = 680,888.77

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Double scale
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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.