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Finding the Fourth Proportional to 707,572.95, 976,320.94 and 417,275.58

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Solution

The fourth proportional to 707,572.95, 976,320.94 and 417,275.58 is: 575,763.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    707,572.95 : 976,320.94 = 417,275.58 : x
  2. Step 2: Convert to fraction form
    707,572.95/976,320.94 = 417,275.58/x
  3. Step 3: Cross multiply
    707,572.95x = 976,320.94 × 417,275.58
  4. Step 4: Simplify right side
    707,572.95x = 407,394,886,504.65
  5. Step 5: Solve for x
    x = 407,394,886,504.65/707,572.95
  6. Step 6: Final answer
    x = 575,763.79

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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.