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Finding the Fourth Proportional to 707,312.79, 975,803.36 and 435,298.59

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Solution

The fourth proportional to 707,312.79, 975,803.36 and 435,298.59 is: 600,534.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    707,312.79 : 975,803.36 = 435,298.59 : x
  2. Step 2: Convert to fraction form
    707,312.79/975,803.36 = 435,298.59/x
  3. Step 3: Cross multiply
    707,312.79x = 975,803.36 × 435,298.59
  4. Step 4: Simplify right side
    707,312.79x = 424,765,824,548.77
  5. Step 5: Solve for x
    x = 424,765,824,548.77/707,312.79
  6. Step 6: Final answer
    x = 600,534.63

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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.