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Finding the Fourth Proportional to 570,598.44, 855,577.58 and 390,886.85

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Solution

The fourth proportional to 570,598.44, 855,577.58 and 390,886.85 is: 586,110.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,598.44 : 855,577.58 = 390,886.85 : x
  2. Step 2: Convert to fraction form
    570,598.44/855,577.58 = 390,886.85/x
  3. Step 3: Cross multiply
    570,598.44x = 855,577.58 × 390,886.85
  4. Step 4: Simplify right side
    570,598.44x = 334,434,018,944.50
  5. Step 5: Solve for x
    x = 334,434,018,944.50/570,598.44
  6. Step 6: Final answer
    x = 586,110.99

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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.