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Finding the Fourth Proportional to 570,030.30, 855,045.45 and 149,348.70

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Solution

The fourth proportional to 570,030.30, 855,045.45 and 149,348.70 is: 224,023.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,030.30 : 855,045.45 = 149,348.70 : x
  2. Step 2: Convert to fraction form
    570,030.30/855,045.45 = 149,348.70/x
  3. Step 3: Cross multiply
    570,030.30x = 855,045.45 × 149,348.70
  4. Step 4: Simplify right side
    570,030.30x = 127,699,926,398.42
  5. Step 5: Solve for x
    x = 127,699,926,398.42/570,030.30
  6. Step 6: Final answer
    x = 224,023.05

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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.