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Finding the Fourth Proportional to 571,423.60, 859,111.80 and 534,422.80

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Solution

The fourth proportional to 571,423.60, 859,111.80 and 534,422.80 is: 803,482.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,423.60 : 859,111.80 = 534,422.80 : x
  2. Step 2: Convert to fraction form
    571,423.60/859,111.80 = 534,422.80/x
  3. Step 3: Cross multiply
    571,423.60x = 859,111.80 × 534,422.80
  4. Step 4: Simplify right side
    571,423.60x = 459,128,933,669.04
  5. Step 5: Solve for x
    x = 459,128,933,669.04/571,423.60
  6. Step 6: Final answer
    x = 803,482.62

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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.