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Finding the Fourth Proportional to 581,681.80, 872,522.70 and 249,905.80

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Solution

The fourth proportional to 581,681.80, 872,522.70 and 249,905.80 is: 374,858.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    581,681.80 : 872,522.70 = 249,905.80 : x
  2. Step 2: Convert to fraction form
    581,681.80/872,522.70 = 249,905.80/x
  3. Step 3: Cross multiply
    581,681.80x = 872,522.70 × 249,905.80
  4. Step 4: Simplify right side
    581,681.80x = 218,048,483,361.66
  5. Step 5: Solve for x
    x = 218,048,483,361.66/581,681.80
  6. Step 6: Final answer
    x = 374,858.70

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Half scale
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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.