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Finding the Fourth Proportional to 886,806.10, 1,330,209.15 and 606,870.10

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Solution

The fourth proportional to 886,806.10, 1,330,209.15 and 606,870.10 is: 910,305.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    886,806.10 : 1,330,209.15 = 606,870.10 : x
  2. Step 2: Convert to fraction form
    886,806.10/1,330,209.15 = 606,870.10/x
  3. Step 3: Cross multiply
    886,806.10x = 1,330,209.15 × 606,870.10
  4. Step 4: Simplify right side
    886,806.10x = 807,264,159,881.42
  5. Step 5: Solve for x
    x = 807,264,159,881.42/886,806.10
  6. Step 6: Final answer
    x = 910,305.15

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Double scale
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Similar ratio
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1.5x scale

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.