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Finding the Fourth Proportional to 558,266.70, 837,400.05 and 553,601.10

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Solution

The fourth proportional to 558,266.70, 837,400.05 and 553,601.10 is: 830,401.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    558,266.70 : 837,400.05 = 553,601.10 : x
  2. Step 2: Convert to fraction form
    558,266.70/837,400.05 = 553,601.10/x
  3. Step 3: Cross multiply
    558,266.70x = 837,400.05 × 553,601.10
  4. Step 4: Simplify right side
    558,266.70x = 463,585,588,820.06
  5. Step 5: Solve for x
    x = 463,585,588,820.06/558,266.70
  6. Step 6: Final answer
    x = 830,401.65

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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.