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Finding the Fourth Proportional to 556,626.88, 768,094.32 and 314,931.52

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Solution

The fourth proportional to 556,626.88, 768,094.32 and 314,931.52 is: 434,576.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,626.88 : 768,094.32 = 314,931.52 : x
  2. Step 2: Convert to fraction form
    556,626.88/768,094.32 = 314,931.52/x
  3. Step 3: Cross multiply
    556,626.88x = 768,094.32 × 314,931.52
  4. Step 4: Simplify right side
    556,626.88x = 241,897,111,700.97
  5. Step 5: Solve for x
    x = 241,897,111,700.97/556,626.88
  6. Step 6: Final answer
    x = 434,576.77

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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.