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Finding the Fourth Proportional to 530,607.88, 732,679.68 and 492,144.22

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Solution

The fourth proportional to 530,607.88, 732,679.68 and 492,144.22 is: 679,567.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    530,607.88 : 732,679.68 = 492,144.22 : x
  2. Step 2: Convert to fraction form
    530,607.88/732,679.68 = 492,144.22/x
  3. Step 3: Cross multiply
    530,607.88x = 732,679.68 × 492,144.22
  4. Step 4: Simplify right side
    530,607.88x = 360,584,069,623.45
  5. Step 5: Solve for x
    x = 360,584,069,623.45/530,607.88
  6. Step 6: Final answer
    x = 679,567.88

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Double scale
Find fourth proportional to 530,608.88, 732,681.06 and 492,145.22
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.