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Finding the Fourth Proportional to 315,681.42, 475,653.33 and 260,752.18

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Solution

The fourth proportional to 315,681.42, 475,653.33 and 260,752.18 is: 392,888.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,681.42 : 475,653.33 = 260,752.18 : x
  2. Step 2: Convert to fraction form
    315,681.42/475,653.33 = 260,752.18/x
  3. Step 3: Cross multiply
    315,681.42x = 475,653.33 × 260,752.18
  4. Step 4: Simplify right side
    315,681.42x = 124,027,642,721.76
  5. Step 5: Solve for x
    x = 124,027,642,721.76/315,681.42
  6. Step 6: Final answer
    x = 392,888.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.