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Finding the Fourth Proportional to 506,915.38, 699,495.74 and 302,925.68

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Solution

The fourth proportional to 506,915.38, 699,495.74 and 302,925.68 is: 418,009.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    506,915.38 : 699,495.74 = 302,925.68 : x
  2. Step 2: Convert to fraction form
    506,915.38/699,495.74 = 302,925.68/x
  3. Step 3: Cross multiply
    506,915.38x = 699,495.74 × 302,925.68
  4. Step 4: Simplify right side
    506,915.38x = 211,895,222,930.71
  5. Step 5: Solve for x
    x = 211,895,222,930.71/506,915.38
  6. Step 6: Final answer
    x = 418,009.06

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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.