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Finding the Fourth Proportional to 612,101.10, 918,151.65 and 606,196.20

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Solution

The fourth proportional to 612,101.10, 918,151.65 and 606,196.20 is: 909,294.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,101.10 : 918,151.65 = 606,196.20 : x
  2. Step 2: Convert to fraction form
    612,101.10/918,151.65 = 606,196.20/x
  3. Step 3: Cross multiply
    612,101.10x = 918,151.65 × 606,196.20
  4. Step 4: Simplify right side
    612,101.10x = 556,580,041,253.73
  5. Step 5: Solve for x
    x = 556,580,041,253.73/612,101.10
  6. Step 6: Final answer
    x = 909,294.30

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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.