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Finding the Fourth Proportional to 518,646.33, 716,014.35 and 358,364.34

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Solution

The fourth proportional to 518,646.33, 716,014.35 and 358,364.34 is: 494,737.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,646.33 : 716,014.35 = 358,364.34 : x
  2. Step 2: Convert to fraction form
    518,646.33/716,014.35 = 358,364.34/x
  3. Step 3: Cross multiply
    518,646.33x = 716,014.35 × 358,364.34
  4. Step 4: Simplify right side
    518,646.33x = 256,594,009,968.28
  5. Step 5: Solve for x
    x = 256,594,009,968.28/518,646.33
  6. Step 6: Final answer
    x = 494,737.93

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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.