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Finding the Fourth Proportional to 356,547.60, 534,821.40 and 156,655.80

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Solution

The fourth proportional to 356,547.60, 534,821.40 and 156,655.80 is: 234,983.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,547.60 : 534,821.40 = 156,655.80 : x
  2. Step 2: Convert to fraction form
    356,547.60/534,821.40 = 156,655.80/x
  3. Step 3: Cross multiply
    356,547.60x = 534,821.40 × 156,655.80
  4. Step 4: Simplify right side
    356,547.60x = 83,782,874,274.12
  5. Step 5: Solve for x
    x = 83,782,874,274.12/356,547.60
  6. Step 6: Final answer
    x = 234,983.70

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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.