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Finding the Fourth Proportional to 699,419.16, 965,547 and 458,071.56

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Solution

The fourth proportional to 699,419.16, 965,547 and 458,071.56 is: 632,367.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    699,419.16 : 965,547 = 458,071.56 : x
  2. Step 2: Convert to fraction form
    699,419.16/965,547 = 458,071.56/x
  3. Step 3: Cross multiply
    699,419.16x = 965,547 × 458,071.56
  4. Step 4: Simplify right side
    699,419.16x = 442,289,620,543.32
  5. Step 5: Solve for x
    x = 442,289,620,543.32/699,419.16
  6. Step 6: Final answer
    x = 632,367.04

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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.