Home / 572,495.40-858,743.10-289,060.20

Finding the Fourth Proportional to 572,495.40, 858,743.10 and 289,060.20

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Solution

The fourth proportional to 572,495.40, 858,743.10 and 289,060.20 is: 433,590.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,495.40 : 858,743.10 = 289,060.20 : x
  2. Step 2: Convert to fraction form
    572,495.40/858,743.10 = 289,060.20/x
  3. Step 3: Cross multiply
    572,495.40x = 858,743.10 × 289,060.20
  4. Step 4: Simplify right side
    572,495.40x = 248,228,452,234.62
  5. Step 5: Solve for x
    x = 248,228,452,234.62/572,495.40
  6. Step 6: Final answer
    x = 433,590.30

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Half scale
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Double scale
Find fourth proportional to 572,496.40, 858,744.60 and 289,061.20
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.