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Finding the Fourth Proportional to 874,595.80, 1,312,476.90 and 401,037.40

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Solution

The fourth proportional to 874,595.80, 1,312,476.90 and 401,037.40 is: 601,823.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    874,595.80 : 1,312,476.90 = 401,037.40 : x
  2. Step 2: Convert to fraction form
    874,595.80/1,312,476.90 = 401,037.40/x
  3. Step 3: Cross multiply
    874,595.80x = 1,312,476.90 × 401,037.40
  4. Step 4: Simplify right side
    874,595.80x = 526,352,323,536.06
  5. Step 5: Solve for x
    x = 526,352,323,536.06/874,595.80
  6. Step 6: Final answer
    x = 601,823.52

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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.