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Finding the Fourth Proportional to 720,024.32, 993,592.44 and 429,963.24

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Solution

The fourth proportional to 720,024.32, 993,592.44 and 429,963.24 is: 593,324.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    720,024.32 : 993,592.44 = 429,963.24 : x
  2. Step 2: Convert to fraction form
    720,024.32/993,592.44 = 429,963.24/x
  3. Step 3: Cross multiply
    720,024.32x = 993,592.44 × 429,963.24
  4. Step 4: Simplify right side
    720,024.32x = 427,208,224,741.91
  5. Step 5: Solve for x
    x = 427,208,224,741.91/720,024.32
  6. Step 6: Final answer
    x = 593,324.72

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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.