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Finding the Fourth Proportional to 480,319.71, 662,783.76 and 265,430.58

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Solution

The fourth proportional to 480,319.71, 662,783.76 and 265,430.58 is: 366,262.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,319.71 : 662,783.76 = 265,430.58 : x
  2. Step 2: Convert to fraction form
    480,319.71/662,783.76 = 265,430.58/x
  3. Step 3: Cross multiply
    480,319.71x = 662,783.76 × 265,430.58
  4. Step 4: Simplify right side
    480,319.71x = 175,923,077,831.38
  5. Step 5: Solve for x
    x = 175,923,077,831.38/480,319.71
  6. Step 6: Final answer
    x = 366,262.46

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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.