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Finding the Fourth Proportional to 415,795.60, 623,693.40 and 350,477.20

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Solution

The fourth proportional to 415,795.60, 623,693.40 and 350,477.20 is: 525,715.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    415,795.60 : 623,693.40 = 350,477.20 : x
  2. Step 2: Convert to fraction form
    415,795.60/623,693.40 = 350,477.20/x
  3. Step 3: Cross multiply
    415,795.60x = 623,693.40 × 350,477.20
  4. Step 4: Simplify right side
    415,795.60x = 218,590,316,490.48
  5. Step 5: Solve for x
    x = 218,590,316,490.48/415,795.60
  6. Step 6: Final answer
    x = 525,715.80

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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.