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Finding the Fourth Proportional to 342,364.90, 513,547.35 and 342,364.90

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Solution

The fourth proportional to 342,364.90, 513,547.35 and 342,364.90 is: 513,547.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,364.90 : 513,547.35 = 342,364.90 : x
  2. Step 2: Convert to fraction form
    342,364.90/513,547.35 = 342,364.90/x
  3. Step 3: Cross multiply
    342,364.90x = 513,547.35 × 342,364.90
  4. Step 4: Simplify right side
    342,364.90x = 175,820,587,128.02
  5. Step 5: Solve for x
    x = 175,820,587,128.02/342,364.90
  6. Step 6: Final answer
    x = 513,547.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.