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Finding the Fourth Proportional to 570,124.55, 786,855.35 and 328,360.07

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Solution

The fourth proportional to 570,124.55, 786,855.35 and 328,360.07 is: 453,184.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,124.55 : 786,855.35 = 328,360.07 : x
  2. Step 2: Convert to fraction form
    570,124.55/786,855.35 = 328,360.07/x
  3. Step 3: Cross multiply
    570,124.55x = 786,855.35 × 328,360.07
  4. Step 4: Simplify right side
    570,124.55x = 258,371,876,164.07
  5. Step 5: Solve for x
    x = 258,371,876,164.07/570,124.55
  6. Step 6: Final answer
    x = 453,184.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.