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Finding the Fourth Proportional to 346,315.70, 519,473.55 and 121,710.80

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Solution

The fourth proportional to 346,315.70, 519,473.55 and 121,710.80 is: 182,566.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,315.70 : 519,473.55 = 121,710.80 : x
  2. Step 2: Convert to fraction form
    346,315.70/519,473.55 = 121,710.80/x
  3. Step 3: Cross multiply
    346,315.70x = 519,473.55 × 121,710.80
  4. Step 4: Simplify right side
    346,315.70x = 63,225,541,349.34
  5. Step 5: Solve for x
    x = 63,225,541,349.34/346,315.70
  6. Step 6: Final answer
    x = 182,566.20

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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.