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Finding the Fourth Proportional to 707,415.39, 976,360.57 and 417,009.63

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Solution

The fourth proportional to 707,415.39, 976,360.57 and 417,009.63 is: 575,548.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    707,415.39 : 976,360.57 = 417,009.63 : x
  2. Step 2: Convert to fraction form
    707,415.39/976,360.57 = 417,009.63/x
  3. Step 3: Cross multiply
    707,415.39x = 976,360.57 × 417,009.63
  4. Step 4: Simplify right side
    707,415.39x = 407,151,762,661.12
  5. Step 5: Solve for x
    x = 407,151,762,661.12/707,415.39
  6. Step 6: Final answer
    x = 575,548.35

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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.