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Finding the Fourth Proportional to 710,440.35, 980,065.89 and 516,547.60

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Solution

The fourth proportional to 710,440.35, 980,065.89 and 516,547.60 is: 712,587.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    710,440.35 : 980,065.89 = 516,547.60 : x
  2. Step 2: Convert to fraction form
    710,440.35/980,065.89 = 516,547.60/x
  3. Step 3: Cross multiply
    710,440.35x = 980,065.89 × 516,547.60
  4. Step 4: Simplify right side
    710,440.35x = 506,250,683,321.36
  5. Step 5: Solve for x
    x = 506,250,683,321.36/710,440.35
  6. Step 6: Final answer
    x = 712,587.18

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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.