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Finding the Fourth Proportional to 623,718.70, 935,578.05 and 224,421.10

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Solution

The fourth proportional to 623,718.70, 935,578.05 and 224,421.10 is: 336,631.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    623,718.70 : 935,578.05 = 224,421.10 : x
  2. Step 2: Convert to fraction form
    623,718.70/935,578.05 = 224,421.10/x
  3. Step 3: Cross multiply
    623,718.70x = 935,578.05 × 224,421.10
  4. Step 4: Simplify right side
    623,718.70x = 209,963,455,116.86
  5. Step 5: Solve for x
    x = 209,963,455,116.86/623,718.70
  6. Step 6: Final answer
    x = 336,631.65

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Half scale
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Double scale
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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.