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Finding the Fourth Proportional to 346,397.61, 478,299.02 and 265,697.31

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Solution

The fourth proportional to 346,397.61, 478,299.02 and 265,697.31 is: 366,869.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,397.61 : 478,299.02 = 265,697.31 : x
  2. Step 2: Convert to fraction form
    346,397.61/478,299.02 = 265,697.31/x
  3. Step 3: Cross multiply
    346,397.61x = 478,299.02 × 265,697.31
  4. Step 4: Simplify right side
    346,397.61x = 127,082,761,661.15
  5. Step 5: Solve for x
    x = 127,082,761,661.15/346,397.61
  6. Step 6: Final answer
    x = 366,869.63

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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.