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Finding the Fourth Proportional to 344,005.10, 516,007.65 and 260,024.30

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Solution

The fourth proportional to 344,005.10, 516,007.65 and 260,024.30 is: 390,036.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    344,005.10 : 516,007.65 = 260,024.30 : x
  2. Step 2: Convert to fraction form
    344,005.10/516,007.65 = 260,024.30/x
  3. Step 3: Cross multiply
    344,005.10x = 516,007.65 × 260,024.30
  4. Step 4: Simplify right side
    344,005.10x = 134,174,527,985.90
  5. Step 5: Solve for x
    x = 134,174,527,985.90/344,005.10
  6. Step 6: Final answer
    x = 390,036.45

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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.