Home / 985,347.18-1,478,020.77-353,916.54

Finding the Fourth Proportional to 985,347.18, 1,478,020.77 and 353,916.54

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Solution

The fourth proportional to 985,347.18, 1,478,020.77 and 353,916.54 is: 530,874.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    985,347.18 : 1,478,020.77 = 353,916.54 : x
  2. Step 2: Convert to fraction form
    985,347.18/1,478,020.77 = 353,916.54/x
  3. Step 3: Cross multiply
    985,347.18x = 1,478,020.77 × 353,916.54
  4. Step 4: Simplify right side
    985,347.18x = 523,095,996,966.54
  5. Step 5: Solve for x
    x = 523,095,996,966.54/985,347.18
  6. Step 6: Final answer
    x = 530,874.81

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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.