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Finding the Fourth Proportional to 553,302.60, 829,953.90 and 364,345.80

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Solution

The fourth proportional to 553,302.60, 829,953.90 and 364,345.80 is: 546,518.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,302.60 : 829,953.90 = 364,345.80 : x
  2. Step 2: Convert to fraction form
    553,302.60/829,953.90 = 364,345.80/x
  3. Step 3: Cross multiply
    553,302.60x = 829,953.90 × 364,345.80
  4. Step 4: Simplify right side
    553,302.60x = 302,390,217,658.62
  5. Step 5: Solve for x
    x = 302,390,217,658.62/553,302.60
  6. Step 6: Final answer
    x = 546,518.70

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Similar ratio
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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.