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Finding the Fourth Proportional to 556,013.46, 767,290.27 and 314,287.54

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Solution

The fourth proportional to 556,013.46, 767,290.27 and 314,287.54 is: 433,712.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,013.46 : 767,290.27 = 314,287.54 : x
  2. Step 2: Convert to fraction form
    556,013.46/767,290.27 = 314,287.54/x
  3. Step 3: Cross multiply
    556,013.46x = 767,290.27 × 314,287.54
  4. Step 4: Simplify right side
    556,013.46x = 241,149,773,625.59
  5. Step 5: Solve for x
    x = 241,149,773,625.59/556,013.46
  6. Step 6: Final answer
    x = 433,712.11

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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.