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Finding the Fourth Proportional to 528,099.70, 792,149.55 and 470,038.90

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Solution

The fourth proportional to 528,099.70, 792,149.55 and 470,038.90 is: 705,058.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,099.70 : 792,149.55 = 470,038.90 : x
  2. Step 2: Convert to fraction form
    528,099.70/792,149.55 = 470,038.90/x
  3. Step 3: Cross multiply
    528,099.70x = 792,149.55 × 470,038.90
  4. Step 4: Simplify right side
    528,099.70x = 372,341,103,117.50
  5. Step 5: Solve for x
    x = 372,341,103,117.50/528,099.70
  6. Step 6: Final answer
    x = 705,058.35

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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.